Tire Discounters

I asked them to repair my tire. I ran over something and it started to lose air. I dropped it off at the Troy, Ohio location of Tire Discounters. Called the next morning and was told i was third in line. Called back to 2pm and it wasn't done. Drove there after 3pm and it was still in the bay. He finished up and drove it out. I paid. Drove home then to Piqua. The psi read 37 (on the damaged tire). Stopped in piqua and came back out to the car and the tire pressure read 33 psi. We picked up dinner and headed back to troy. The tire now read 28 psi and the tire light came on. By the time i got home around 630pm, the tire pressure was 27 psi. I woke up the next morning to a completely flat tire. Called them on monday and they said it couldn't be their fault and they wanted me to bring it out to them to look at. How many times does it take to fix a tire at Tire Discounters? Fool me once, shame on you... fool me twice, shame on me. NEVER AGAIN.