I took my car to get the alternator replaced 3onth...

I took my car to get the alternator replaced 3onths ago at Pep Boys in Willow Grove PA 3 months ago when I broke down in middle of the road, 6 months after had alternator was installed there with a warranty and waited over 3 hours for Pep Boys towing on a very hot humid day. They did charge me $222 to tell me I had to get a new battery so they can test alternator (which they could have tested alternator with a machine). Then as I'm driving to the bank that my work uses the other day, with a bank deposit, the car died on me again!! Ater alternator went AGAIN so even though under warranty at Pep Boys, I took it to my mechanic so that it is fixed properly as I don't want to break down in 3 more months in dead of winter. It cost me $280 at my mechanic but I know it is fixed properly!! Also Pep Boys tried to tell me needed oil change as there was no oil in car which I declined to get for $80 more, but I checked the oil when i picked up the car and oil was fine, not bone dry like they said!! I will NEVER again go to Pep Boys as according to my mechanic the alternator was not even replaced 3 months ago!!! Pep Boys is the absolute worst!!! I would advise everyone not to use Pep Boys!!!