eSIM.io Made an Unauthorized $3.71 Purchase

I did not make any purchase through the eSIM.io app using my card, yet the app automatically purchased a package for $3.71 without my authorization. As soon as I noticed the transaction, I immediately removed my saved card from the app. The $3.71 amount now appears under the “IO Balance” section in the app, and although I was told that the amount would later be transferred back to my account, it is still being held only as account credit and has not been refunded to my card.

I request that the unauthorized $3.71 charge be refunded directly to my card instead of being held as account credit in the app. I also request that the necessary checks be carried out to prevent similar unauthorized transactions from happening again.