A pay by phone casino lets you deposit with your phone bill. Instead of paying with a card or bank account, the deposit is added to your monthly bill or taken from your prepaid credit. You usually confirm it with a code sent by text message.
A payment service, such as Boku, connects the casino to your mobile network. It is popular in some other countries for small deposits. In Canada, it barely exists for casinos. Sorry!
Almost never.
For a phone bill deposit to work, three things need to line up: the casino has to offer it, a payment service has to connect that casino to Canadian networks, and your mobile carrier has to allow gambling charges.
That last part is the sticking point. Carriers let you charge apps, games and digital content to your bill, but gambling is treated as a different category, and support is limited.
Regulated casinos in Ontario and Alberta do not offer phone bill deposits as a standard option. Among internationally licensed casinos serving the rest of Canada, it is hard to find, and even where it appears, your carrier may block it.
If you are set on paying by phone bill, check both the casino cashier and your carrier's rules before you try.