How can I continue to pay my bank debts from outside the GCC countries?

If you mean the person is out outside the UAE, he can give a POA to someone to finalize this issue on his behalf.

At least you should know this account for which bank (bank name).

I advise you to contact the bank's public relations manager or any other official and explain the situation to them while clarifying your commitment to continuing to pay the bank from outside the UAE.

Theoretically, you can pay from outside the country, and this depends on how the bank deals with your exit from the security point of view, and you can request to inquire about your bank account number with the ID number.