The real problem is: the conflict resolution process at Upwork is utterly Kafkaesque.
Even if you have a perfect five stars reputation for two years, all it takes is one upset jerk and you are done at Upwork. Eventually you will step on someones having a bad day if you stay there enough.
After you make a good reputation in those market places you can command a higher fee - perhaps they want you out at this point so they can get work for other skilled professionals that are undercharging in order to build reputation.
Even if you have a perfect five stars reputation for two years, all it takes is one upset jerk and you are done at Upwork. Eventually you will step on someones having a bad day if you stay there enough.
After you make a good reputation in those market places you can command a higher fee - perhaps they want you out at this point so they can get work for other skilled professionals that are undercharging in order to build reputation.