The car rental company requires a €480 insurance fee for cross-border rentals, which was not communicated by the platform in advance. The platform also sold its own insurance. The additional insurance cost more than the rental itself. Customer service couldn't resolve any issues. Whether the platform is malicious or simply less competent and responsible, as a platform, it should at least have clear information from the rental company. Leaving customers to deal with the rental company's unilateral demands abroad is unacceptable. I will avoid using it in the future as much as possible.