I found a nail in the middle tread area of my left rear tire. I had no sidewall or rim damage. I drove to Discount Tire Center at the above address for a flat tire repair. I waited for the repair and afterwards I was told I needed a new tire because of a large gouge on the sidewall that was not there before the repair. Danovan was the representative assisting me. He advised the damage was previously caused by curb damage. I said the damage was not there before, appeared fresh, was a large gouge from the bead of the tire to the sidewall. Impossible to be caused by a curb. I was not charged for the tire repair but was charged $135 dollars for a replacement tire which Donovan ordered on Sept. 14th for install on the 16th, Hancook Dynapro HP2 235/50r/19. The original tires were purchased New in March of 2019. I don't understand the reason for the damage and aqquired cost of the replacement tire? Can someone please assist me with this problem and how to better resolve this? Rick Flores [protected]@sbcglobal.net.