Opodo Charged Me After Canceling Prime and Accessing Blocked Accounts

I canceled my Opodo Prime membership a few months back, but they keep charging me. Even though they blocked the first bank account tied to the membership, Opodo managed to get into another account and take out money. Once they blocked that second account, they went ahead and did the same with a third one. This is really not okay and seems like a clear effort to keep charging me even though I canceled. I’ve reached out to their customer service a few times, but they haven’t provided a solution. I thought Opodo would be better, but this whole experience has been really frustrating. I have to take more steps to put an end to these unauthorized charges. I can't suggest using their services.