"Ethan
This is the crap that drives people away. You NEED to sort this stuff out or your gonna lose people. I'm actually surprised that so many people are F2P in this game and all this crap does is make it less enjoyable and as a F2P game, it's not hard for them to drop. Fix this or I ain't renewing.
The game saving requires transfering Save Data from the browser to the website's servers. This however cannot be completed where a periodic disconnection can occur, which is usually termed as Packet Loss. No connection on the internet is stable and you cannot blame the developers for this issue. We also call this lagspike and in that moment, a connection is lost but again re-estabilished. This cannot be fixed by either yourself or the server administrators and you should be sure to check your data is saved.
Many people are F2P for this game cause they are not always available to attend the races due to commitments outside of the game, specifically work or family.
Just be sure to check your setups are saved properly, and a simple resave is to increase then decrease a stint's fuel and then click save and should remain greyed out. Then refresh the page to see if your setup remains and it should, if not, you will be prompted to save anyway. Check in your preferences that you have that feature enabled.
Sorry if you decide not to renew your subscription, but at the end of the day bud, threats do not fix things faster.