Firestone Complete Auto Care

I buy my tires brand new from fire stone been a customer with them for over five years Charlotte fire stone on university gives me excellent service I also have the warranty on my tire I've had to get a tire months before the University area asked me what did I want to pay with service that I need and it cost me about 40 bucks Charlotte North Carolina Monroe Rd., Firestone complete Concord charge me $87 for a new tire and I had the warranty so what was the purpose and get in the warranty when the actual tire cost about $87 I wasn't asked if I wanted new Valvestems I always thought fire stone would be the same anywhere I go yet I've learned in order to get discounts or better service I have to go to the one I always go to I always get a fire stone high ratings and told my friends yet at the end of the day I can go to any side tire place and pay less than $87 for Tire all my information is in the computer to see that I am a loyal customer I think it was very shady to charge me $87 flat tireWith the warranty