We can offer to schedule a TeamViewer appointment with someone from our tech team. In any case, TeamViewer will make it clear what exactly causes the problems. Often our colleagues even succeed in solving the problems right away.
An appointment can be scheduled on weekdays from 09:00 - 20:00, and on weekends between 10:30 - 12:30 and 18:30 - 20:00. An appointment can easily be scheduled through us (the Support department) and is only possible on Windows, Linux, macOS, and ChromeOS.