This sort of thing really bugs me, when you seem to have no recourse.
Yesterday I tried to pay for Google Ads with my business Paypal Mastercard but they wouldn't accept it, it just said "refer to merchant" or something similar. I call Paypal and of course they have no idea why Google wouldn't accept it, and anyone that's tried to contact Google will know what a fruitless endeavour that is so you're just left blowing in the wind with no explanation.