Most beginners read a bonus ceiling as a single figure: “up to 150 dollars,” “up to 500 euros,” and they make a deposit decision on that number alone. That reading is wrong, and it is wrong in a way that costs money. A ceiling is actually three stacked numbers, and on most operator pages only one of them is printed in large type. The other two hide in the terms, the cashier flow, or the fine print under the promotional card. This primer walks through how to find all three on a Canadian-facing page, using the Supabet welcome offer as the worked example.
Why a Bonus Ceiling Is Three Numbers, Not One
The headline figure on a promotional card is a cap on the bonus, not on your money and not on what you can withdraw. Underneath it sit a deposit cap (the most you can put in and still qualify), a bonus cap (the most bonus funds the operator will credit), and a winnings cap (the most you can convert from bonus funds into withdrawable cash, if one applies). If any one of those three is smaller than you assumed, the effective value of the offer drops, sometimes sharply.
The Supabet welcome offer page is a useful case study because it states different numbers in different places. The promotional card names a 100 per cent first deposit bonus up to 150 dollars, and that 150 dollar figure is stated twice and in dollars with the Canadian market named. The body copy, meanwhile, names a 100 per cent welcome bonus up to 500 euros with 200 free spins. Those are two different ceilings in two different currencies on the same page. A beginner who reads only the card will size a deposit for a 150 dollar cap; a beginner who reads only the body copy will size it for a 500 euro cap. Neither has yet found the deposit cap or the winnings cap.
Write the three numbers down before you deposit
The practical fix is procedural, not analytical. Before you touch the Supabet cashier, open the Supabet welcome offer page in one tab and a blank note in another. Copy down, verbatim, every figure that appears: the 150 dollar card figure, the 500 euro body figure, the 200 free spins, and any deposit minimum or maximum you can find. Then read the terms link from the same page and add the playthrough and the clearing window. You now have a written record you can check against your account after the deposit, which matters because promotional terms can be edited between the day you read them and the day you claim.
This step takes maybe ten minutes. It is the difference between a deposit amount chosen deliberately and one chosen from a headline. Treat the note as the real offer and the page as marketing, and the rest of this guide follows naturally.
Reading the Deposit Cap and Bonus Cap in the Cashier Flow
The deposit cap is the number most often missing from the headline and most often decisive. A 100 per cent match up to 150 dollars means the operator will match your first deposit dollar for dollar, but only up to 150 dollars of bonus. Deposit 300 dollars and you receive 150 dollars in bonus, not 300. Deposit 50 dollars and you receive 50. The bonus cap is doing the work; the deposit cap, if one exists, is a separate ceiling on what you are allowed to put in and still qualify at all.
Where you find these numbers depends on how the site is ordered. On Supabet, the cashier precedes the promotions in the site’s order, and the calendar follows the cashier, with the lobby coming last. That ordering is worth knowing before you start, because it means the cashier is not buried behind the promotional pages: you can reach it early, look at the deposit fields, and see the minimum and maximum amounts the form will accept before you have read a single bonus term. Those form limits are a strong hint at the deposit cap. If the field refuses amounts above a certain figure for a first deposit, that figure is your practical ceiling regardless of what the card says.
Currency and market labels change the number you are reading
The Supabet page carries both a dollar figure and a euro figure for what is nominally the same welcome package, and the 150 dollar figure is the one repeated and tied explicitly to Canada. For a Toronto player, the dollar figure is the one that will appear at the cashier, and the euro figure is likely a template left over from a broader page build. That is not automatically a red flag, but it is a reason to confirm the currency in the cashier before depositing, because a matched deposit calculated in the wrong currency can land you with a bonus smaller than the card implied.
The licensing context matters here too. Supabet holds an offshore licence from the Anjouan Gaming Board and is not part of Ontario’s regulated market. If you are in Toronto or anywhere else in Ontario, that means the operator is not one of the registered operators overseen by iGO, and the consumer protections you would get from an Ontario-licensed site, including dispute channels and advertising standards, do not apply in the same way. Supabet casino provides further background on the subject. None of that makes the bonus fake. It does mean the terms document is your only real contract, so the numbers you write down from it carry more weight than they would on a regulated site.
Playthrough, Clearing Windows, and the Winnings Cap
The third stacked number, the winnings cap, is the one beginners miss entirely, and it is sometimes absent rather than hidden. Where it exists, it limits how much of your bonus-derived winnings you can actually withdraw, which can make a generous-looking ceiling largely theoretical. Where it does not exist, the playthrough requirement becomes the real constraint instead, because it determines how much wagering stands between bonus funds and cash.
The operator names 35 times as the playthrough requirement. Read that against the bonus cap, not the headline: 35 times a 150 dollar bonus is 5,250 dollars of wagering before any bonus-derived funds convert. If you claimed against the euro figure instead, the wagering requirement scales with it. This is why the written note matters. The playthrough number is fixed in the terms, but the amount it applies to depends on which ceiling you actually received, and that depends on your deposit and the currency at the cashier.
A clearing window is quoted in business days, which is a different unit from the hours you might expect from deposit processing. Deposit hours and payout speeds are usually described in hours or minutes; the clearing window for bonus conversion is quoted in business days, so a figure like “10 business days” can mean two calendar weeks once weekends are counted. Check whether the window starts at the deposit, at the completion of playthrough, or at the withdrawal request, because the three starting points produce very different deadlines.
The withdrawal wording deserves a slow read for the same reason. Look for phrases that exclude bonus funds from withdrawal until playthrough is complete, phrases that cap the withdrawal of bonus winnings, and phrases that void the bonus if you request a withdrawal before clearing. Each of those is a winnings cap in disguise, even when no single number is printed. If the terms contain none of them, say so in your note, because an absent cap is a genuinely better offer than a high one.
What the lobby catalogue tells you about clearing
The lobby comes last in the site’s order, which is convenient for this step: after reading the cashier and the terms, browse the lobby catalogue and check which game categories count toward playthrough. Many operators count slots at 100 per cent and table games at a fraction, and some exclude whole categories. A 35 times requirement is a very different proposition if only part of the lobby counts, because your effective wagering cost rises with every excluded game. Note the counting percentages next to the playthrough figure.
Mobile browser access is worth testing before you commit, since the cashier flow and the terms pages are where you will spend your reading time, and a cramped mobile layout can hide the deposit maximum or the currency selector. Load the Supabet casino login on your phone, walk to the cashier, and confirm you can see the same fields you saw on desktop. If the mobile view truncates the terms, do the reading on desktop and keep the note with you.
Run this as a checklist before your first deposit, and the Supabet review question answers itself: card figure, body figure, currency at the cashier, deposit maximum in the form, playthrough multiplier, clearing window in business days, winnings cap or its absence, and game weighting from the lobby. Write all three stacked numbers down, deposit cap, bonus cap, and winnings cap, and only then decide your first deposit amount. If any of the three cannot be found, treat the offer as smaller than advertised until the support team puts it in writing. Skepticism here is not cynicism; it is just reading the contract before signing it.