Debit card in my country is for only withdrawing and not for depositing money.
Does that mean regardless of what platform you use, you can't use a debit card to pay your bills? That sounds a bit outdated. That means the usage of your debit card is very limited such as withdrawing money from ATM or something similar.
but i had no problems in my bank until i made wire transfer, after that they asked a huge volume of information about all my transactions.
But if there is no choice - we have to use it.
It might have to do with the volume of your transaction, or they have some policy regarding gambling-related transactions so they need more info just in case they need to monitor you further. I think it is unavoidable if you use fiat, I won't be surprised if you use another bank and try to do the same thing and get flagged too. Ultimately, you'll have to deal with it if fiat is the only way to make your purchase.