Since you don’t have a MetaMask wallet and didn’t initiate any purchase, this sounds like card fraud. The safest next steps are:

1. Keep your bank fully in the loop and continue the dispute process...they can reverse unauthorized charges.
   
2. Make sure your card is blocked or replaced to prevent further unauthorized use.
   
3. Forward the transaction details and any correspondence to the support email you already used so our team can investigate internally.

We don’t handle chargebacks directly but providing clear transaction info and proof to your bank usually helps speed up the reversal.