I’ve never purchased but some debit cards can be used for online purchases. idk which bank you use but before you try check you have both online and international purchases activated (in most cases it can be done trough the bank app, if not you’ll need to call). If the transaction fails nothing should happen.
It will easier if the account is of US dollars or some strong currency, the exchange rates are more stable and more clearly established.

Anyone here have have purchase novel from Ridi?
I just made an account and want to purchase a novel cause I can't wait for the next chapter and there's no English translation anywhere. HOWEVER I only have debit and no credit card ಥ‿ಥ
Please help