Please i needed a refund for a billing transaction that took place on my id

All you can do is try. Refunds are not guaranteed.

Request a refund for apps or content that you bought from Apple - Apple Support

If your account has been compromised, then additional measures will need to be taken to secure your account to prevent that from happening again.

First verify your purchase history from this link , if you was using other Apple 🆔 then switch to new one check that Apple 🆔 too because changing Apple 🆔 does not cancel subscriptions

View your purchase history for the App Store and other Apple media services - Apple Support