as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
help! i've cancelled their service, but this company continues to bill my credit card an annual fee. what can i do?
user
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.
assistant