It looks like they didn't either put a stronger stabilizer on it or they did get it tight enough on the hoop or both. I would let them know that it was not done to my satifaction. I had sort of the same problem with a local shop. Had my GD name put on a shirt that I made and the letters were not even. I let them know that they were not also. If you don't speak up they will do someone else the same way and think there work is just fine.