Cpr Cell Phone Repair Did not honor warranty Springfield New Jersey

My son took his phone to get a new screen put on because it was shattered. They put a new screen on and a few days later the screen cracks. He doesn't drop it. The screen just cracks. We take it back to the store and the store rep tells us that the phone is bent and that they usually straighten the frame when they put a new glass in. Well they tell us that we can't honor the warranty. I say that their tech missed the bent frame and that they should honor the warranty which they do not do. Do not use these guys. They charge you 149.00 to replace a piece of glass that probably costs 20 and then they don't honor their warranty when they missed a bent frame. Scammers!