TSR Recovery Services review: Not a credible debt collector

So i wrote a check fro $20.00 to safeway that bounces on accident and i had a hard time paying them back in time. By the time i was able to pay them back they added on a $60 fee and required i took a fraudulant check writing class that i had to pay for which was another $120 dollars. I was very upset first off at how safeway handled it but then i paid the fee and went to the class and thought i was done with problem. Then 6 months down the road a keep getting a call from an unavailable number that calls at random times and sometimes when i would answer there would be no one on the other end of the phone. They would never leave a message and never sent me any mail. The few times a did answer the phone they claimed i still owed this debt. They never told me the name of the company until i asked and they made it impossible to get a hold of them if needed. Luckily i found a reciept that i can fax them to make sure that this is finally off my back. I hate sketchy money beggers!