Normally once funds are in Apple Account balance the only way to get them out again is to spend them.
From: Check your Apple ID balance - https://support.apple.com/HT202359 -->
"About unused Apple ID balance
You can't redeem or return Apple Gift Cards, App Store & iTunes Gift Cards, or unused Apple ID balance for cash, except as required by law. If your jurisdiction allows for refund of redeemed gift balances, you can contact Apple Support."
A Community Specialist in this topic --> https://discussions.apple.com/thread/253337931 recommends contacting Apple about your options:
Click here --> https://support.apple.com/choose-country-region/media-services Select your country, then a product. If you don't see one that handles your issue then keep experimenting with selections until you reach one that gets you a chat session or a telephone call and get the representative to redirect you.
or:
Contact Apple for support and service --> "See a list of Apple phone numbers around the world."
Click here --> https://support.apple.com/HT201232
