Using microsoft account balance to pay for halo credits

I'm Samy an independent advisor. Welcome to the Xbox community. How are you?

You probably have to buy the credits for the game and then buy the skins.

"Halo Credits are in-game currency used to purchase player customization items, boosts, and other consumables as well as unique seasonal Battle Passes that never expire. Create your own personal Spartan and prepare for battle in Halo Infinite Multiplayer!

You may need to restart Halo Infinite for Halo Credits to appear in your account."

Start the purchase with your Microsoft account balance. If there are not enough funds to complete the purchase it will ask how you want to pay the rest and then you would use a credit card/Paypal to pay the remaining balance.

Unfortunately, you're not able to use Microsoft Credit to pay for memberships. You'll need to pay with your Paypal account or credit/debit card.

Here's more information on
How to pay a past due balance.

Overdue balances can only be paid via credit card or Paypal. You would have to pay off that balance before you could use your Microsoft account balance on a subscription.

You would have to use a credit card or Paypal to pay off the balance he owes before you can use the prepaid card.

The overdue balance would be tied to his subscription, not his Microsoft account balance. If he had $.53 in his Microsoft account balance, that is most likely still intact since that would not have been enough to pay for a subscription.