Utilize your financial knowledge, give your answer or opinion to the input question or subject . Answer format is not limited.

Help! I've cancelled their service, but this company continues to bill my credit card an annual fee. What can I do?
I'm not a lawyer, and am certainly not familiar with your jurisdiction, but the general guidelines I've seen around this kind of situation are: If all else fails, you could just cancel the card, though I'm not sure what liability you have to honour the contract. I cancelled a card once to stop being charged by a particularly annoying company and had no problems, but I'm not sure if that is a good way to deal with it in general.