Robs Affordable Tires II

I was told on the phone and also when I went there that I was getting 2 new tires. When I left after having them put on I noticed the treads were different and one of the tires looked used. I went to my mechanic and asked him what he thought of the tires and he said "you could've bought new tires for what you paid for these 2 used ones" and I asked if the different tire treads were going to be a problem he said i"t would have been a big problem if they were on the front instead of the back". I went to Rob's Affordable Tires II with my granddaughter and this man lied straight to my face. They are theives who took advantage of an older woman.