Business ProfileforPro Bike + Run

On 5/7/22 I took my Cannondale bike to ProBikes in Monroeville where I purchased it to get two new tires.I picked it up the next day and they had not put any air in the tires which was the first indication something was wrong-After filling the tires,I took the bike for a ride the next day.Immediately the bike began jumping gears, grinding gears and ghost shifting-changing gears on its own. A very dangerous thing to the rider-My knee got jerked and I decided to turn around.I called the store and explained that my derailure must have been damaged during their repair because all of these issues were not happening prior to them replacing my tires.I spoke with Nick and explain that my knee was jerked out because of these issues and want them fixed at no cost-he said to bring the bike up so I did the next day.Ben at Service listen to my explanation and then grabbed my derailleur lever, kicked the derailleur and then told me to take it for a ride as if this was going to fix the problem.I did-it was much worse-he said to leave it there.I called the next day and was told by Steve that there was an impact mark on my derailleur and I needed to pay for a new one!I said that Ben must have caused it when he kicked it and I wanted it replaced for free! I had no problems until they replaced my tires-I received a text from Shane stating I was to take my business elsewhere and nothing was going to be repaired.No explanation of why Ben kicked my derailure in front of witnesses and now they are trying to charge me for a new one-They accused me of trying to get a free part when in fact I paid $100 for two new tires and picked my bike up in worse condition than I dropped it off in as well as witnessed one of their employees literally kick the part that I brought it up there complaining about in front of me and witnesses! I am now forced to find another bike shop to repair it which may not be easy because I bought my bike at ProBikes and some shops will not work on it unless it's theirs.