Gambling is supposed to be fun. If it's not, ConnexOntario can help. 1-866-531-2600.
Don't worry if a previously used payment method is no longer available in the Cashier. It's likely only because it hasn't been used to make a deposit in the past 12 months.
It's easy to add it back to your list of available withdrawal options. All you need to do is make a new deposit with that payment method.