1. If the fee is reasonable (about 200-300 at most) and the guarantee contract clearly indicates the fee, the customer can pay according to the contract requirements.
2. If the cost is unreasonable, such as thousands of dollars, and there is no relevant clause in the guarantee contract indicating the cost, the customer can refuse to pay. If the dispute with the guarantee company is unclear, it may bring a lawsuit to the people's court when necessary to safeguard the legitimate rights and interests of individuals.