The service was terrible. Even after buying insurance, they deliberately made things difficult. The service attitude was extremely poor. They even intentionally made card payments fail, despite claiming that with their insurance, no deposit would be required. My cards all had sufficient limits, but none of my three cards worked. Later, they processed someone else's transaction first, and suddenly my card worked again after that. It was clearly malicious. In the end, they forcibly added additional insurance costing over ten euros, claiming it was due to system price fluctuations.