Hi, and welcome to the Apple Community.
We are all Apple users, like yourself in this Community (not Apple of itself)
So we can not access your accounts or details to check this out for you.
We'd like to help, however.
Wondering if your device is signed in to your Apple ID.
Sign in with your Apple ID - Apple Support
See if Apple Balance can be used ok as a Payment method in your country or region:
Payment methods that you can use with your Apple ID - Apple Support
For some purchases Apple requires a valid credit card listed in your Apple ID account,
even if the payment is being made with Apple ID balance.:
What you can buy with your Apple Gift Card or Apple Account balance – Apple Support
For more help / support if needed:
Try
Apple Store Customer Service at 1‑800‑MY‑APPLE
or
Shopping Help:
Help - Apple
or
You might want to reach out to the Billing Support Team who could access your account details:
There is a "Get Support" link (or an app) at the bottom of their webpage (link below)
Subscriptions and Billing - Official Apple Support
All the best :-)