It wont let me use my code on my game pass without paying the past due amount of 9.00 but...

Past due balances can only be paid via credit card/Paypal. Prepaid subscription codes cannot be used until the balance is paid.

You may see this error if you have an outstanding balance on your Microsoft account. To resolve this problem, you'll have to pay your outstanding balance. Here's how:

1. Sign in to your
   Services & subscriptions page with your Microsoft account.
2. Find your past-due subscription in the list. The outstanding amount will be in red.
3. Select Pay now, and then follow the instructions to pay the balance due.

Note If your subscription is past due, adding a code will not settle the balance you owe. You will have to settle the outstanding balance using the steps above
before redeeming your code.

Dear Fl0yd it now says pay ment pass due What do i do in this

Situation

You let your sub go past the cancel date without payment. You must pay the amount due.

Dear Fl0yd it now says pay ment pass due What do i do in this

Situation

You let your sub go past the cancel date without payment. You must pay the amount due.

Unfortunately, you can't use your account balance to pay for a past due amount.

You will have to
go to this page here to pay your past due amount of money, and use your bank account or credit card with sufficient funds.

After you payed your past due amount, you can then redeem your 3 month card again. You can't redeem any prepaid codes with a past due amount on your account.