M4JAM IS A ****

I started completing jobs on M4JAM App and I didn't experience any issues even if I had a rejection I would see where I went wrong but lately I got rejected and I was told it was a duplicate job and someone had actually completed the job before me but their App wouldn't allow you to complete the first page without picking up if the location has been used or not then I started getting more rejection without proper reasoning, Immediately after that I got blocked. Like who does that? The are actually exploiting people. They will pay you consistently the first couple of jobs to build trust and later block you if they realize you are making a lot of money.M4JAM is a ****