
RTP, Volatility and Hit Frequency: Three Numbers, Three Different Questions
RTP tells you what a slot keeps over millions of spins. Volatility and hit frequency tell you what your evening will feel like. Mixing them up is why

A declined Interac deposit rarely comes with a useful error message. The cause usually sits in one of four places: your bank's limits, your bank's risk checks, the casino's account rules, or the payment processor in between. Here is how to tell which one.
Interac is the default way many Canadians move money to a casino account, and when it works it is quick. When it fails, the cashier typically shows a generic message such as declined, failed or cancelled. That message is produced by whichever party stopped the payment, and it tells you very little about which party that was.
This guide separates the possible causes, explains the rules behind each one, and gives a sequence of checks that usually finds the answer without three rounds of support chat. It applies to adults of legal gambling age in their province (18+ or 19+).
Three different things are often called Interac at a casino cashier, and they fail for different reasons.
In practice, almost all current casino Interac deposits are e-Transfers, often routed through a third-party processor. Our Interac casino guide explains the flow step by step.
e-Transfer limits are not set by the casino and not by Interac. Interac's FAQ says it cannot assist with transactions, account issues or limit increases, and directs customers to their financial institution. Limits differ noticeably between institutions, as two published examples show.
| Sending limit (personal) | Alterna Savings | Vancity |
|---|---|---|
| Per transfer | C$3,000 | C$6,000 |
| 24 hours | C$3,000 | C$10,000 |
| 7 days | C$10,000 | C$10,000 |
| 30 days | C$20,000 | C$20,000 |
Two details catch people out. First, the windows are rolling: Vancity explains that a day is a rolling 24-hour period, so a transfer sent at 11:30 am keeps counting until 11:29 am the next day. Second, every e-Transfer counts, not just casino payments. Rent sent on Monday reduces what you can send to a casino on Tuesday. Vancity also lists a lower ceiling of C$500 per transfer for transfers without a delay, which shows that the maximum is not the only number that matters.
If the casino uses a Request Money flow rather than you sending a transfer, check your bank's request limit too. Vancity, for example, lists C$3,000 per request.
Banks screen payments for fraud, and a first payment to a new recipient, an unusual amount or a pattern of repeated attempts can all be flagged. Interac's FAQ notes that transfers are almost instant but can take up to 30 minutes depending on your bank or credit union, and that issues affecting the e-Transfer service must be reported to your financial institution. It also states that Interac does not hold funds and cannot trace them.
That has a practical consequence: do not keep retrying. Each failed attempt can look more suspicious to an automated system, and repeated attempts may also eat into a rolling limit if any of them were partially processed. Call the number on your card or use your bank's app to ask whether the payment was blocked and why. Some card agreements also restrict gambling-coded transactions, which is a policy question only your bank can answer.
Regulated operators are required to know where money comes from and where it goes. In Ontario, the AGCO's Registrar's Standards for Internet Gaming say in standard 5.69 that deposits must be verified to ensure they are appropriately authorised by a financial services provider, and in standard 5.70 that withdrawals must go to an account of which the player is a legal holder. Operators and their processors implement this by matching the name on the bank account with the name on the casino account.
Common mismatch triggers:
The fix is to deposit only from an account in your own name and make your casino profile match your government ID exactly. This also prevents a harder problem later, when a withdrawal is held for verification.
Casinos rarely receive e-Transfers directly. A payment service provider generates the transfer details, matches incoming funds to your account and credits the balance. Gigadat is one provider known for Interac services to gaming operators in Canada. When something fails at this layer, you may see money leave your bank without appearing on the casino balance, or a transfer that the processor rejects.
Look for the reference number or memo the cashier asked you to include, and check that you sent the exact amount to the exact address shown for that one deposit. A reused address from a previous deposit, or a missing reference, can leave funds unmatched. Send the casino's support team your bank's confirmation screen with the date, time, amount and reference number; they can trace it with the processor.
Sometimes the payment is fine and the casino blocks the deposit. Reasons include an unverified account, a location check that fails, a deposit limit you set yourself, or an active self-exclusion. Ontario's standards require operators to offer deposit and loss limits over 24 hours, 7 days and one month, and where you set more than one, the lowest applies. That is a protection working as intended, not a fault to work around. If you set a limit and now want to exceed it, the standards impose a cooling-off period before any relaxation takes effect.
| Method | How it works | Points to check |
|---|---|---|
| iDebit | Bank-connected payment service | Availability varies by site; confirm withdrawals are supported |
| Instadebit | Bank-connected e-wallet | Last day to deposit was 27 February 2026; withdrawals allowed until 30 April 2026 |
| MuchBetter | Mobile e-wallet | Wallet must be in your name; check fees for loading and withdrawing |
| paysafecard | Prepaid 16-digit code bought at retail outlets | Up to C$400 per transaction; monthly maintenance fee from the second month; plan another route for withdrawals |
Instadebit's own site now shows a service-ending notice and points users to Interac as an alternative, so older casino guides that recommend it are out of date. Paysafecard lists retail partners in Canada including Canada Post, Esso, Mobil and Canadian Tire Gas+, and describes its product as a way to pay online, which makes it a deposit tool rather than a cash-out route. See our pages on iDebit, MuchBetter and paysafecard for the details of each, and remember that regulated Ontario sites do not accept cryptocurrency under standard 5.69.
Most failed Interac deposits come down to a bank limit, a bank fraud check or a name mismatch, in roughly that order of how easy they are to fix. Interac itself is rarely the party you need to talk to. Start with your bank, then the casino with a confirmation number in hand, and keep every deposit in your own name. If deposits keep failing at the same site, that is also a reason to ask whether the site is one you want your money in at all; our guide to casino complaints in Canada explains your options if a payment dispute escalates.
The most common causes are a bank sending limit on a rolling window, a fraud check by your bank, or a name mismatch between your bank account and casino account. Interac says issues with the service must be reported to your financial institution.
No. Interac states that Interac Online is no longer available as of 31 October 2024.
Interac says it does not hold funds and is unable to trace them. Your bank, and then the casino's support team, are the right contacts.
It is a common cause of rejection. Ontario's standards require withdrawals to go to an account the player legally holds, and operators match names on deposits for the same reason.
Not for new deposits. Instadebit's site says the last day to deposit was 27 February 2026 and withdrawals of remaining balances were possible until 30 April 2026.
How we rateWe may earn a commission from partner links; it does not change what we write.19+ (18+ AB, MB, QC)Help: ConnexOntario 1-866-531-2600

RTP tells you what a slot keeps over millions of spins. Volatility and hit frequency tell you what your evening will feel like. Mixing them up is why

For decades a legal sports bet in Canada had to combine several games. A private member's bill changed one paragraph of the Criminal Code in 2021

Canada has no single gambling age. Three provinces set it at 18 and the rest of the country at 19, with a few product-level exceptions, and the rule