Mavis Discount Tire

I have been a loyal customer and also have a synchrony credit card with the Mavis tire logo. I have had work done over the course of 2 years. I don't know much about cars but I do know that the service provided to me was poor and there is a lack of care being provided out of this facility. I have ongoing issues with my car after I had it repaired at this facility . I was told I have an 02 sensor issue which it was replaced . The reason I needed it was cause my car was having a hard start . Diagnosis read a 02 sensor code so it was replaced. A little less then 2 weeks now I'm having the same issue . I paid $230 for repairs and now fear it will just be costly if I go back to Mavis tire . I refuse to go this time to this shop I was told by a Penske mechanic and an experience mechanic that I was being over charge for the part and labor. I believe it why ? At first Mavis tire told me the part was $195 dollars in total they told me $295 for the repair but found out it's a lot cheaper I confrontEd the representative at Mavis tire he didn't sound truthful and told me he wasn't really searching for parts but just saw the first option so he went with the $195 part he said he would call me back. He called me back 20 mins later said he has another part that is really good brand for $130 $60 dollars cheaper I went with that part. My vehicle still has the same issue a close mechanic of mine said macvis tire replace the top sensor but should of replace the bottom one too. He doesn't want me to to take it back to Mavis tire and offered to fix the issue for me for free . When I originally told the rep I knew someone that could find a cheaper part online the Mavis tire rep was angry and aggressive on the phone saying well just take you car back and was quick to brush me off . All I wanted was the rep to help me find an affordable part that wouldn't hurt my pockets that much . I been to this place several times and always see the same person never happy never greeting anyone and just not a type of person I would bring an outsider too for repairs. My car took several days for them to run a diagnosis at first and to repair the sensor Issue it's like if they could care less. At this time I'm curious to know if Mavis tire cares or is loyal to its customers.