Tireworks Total Car Care N. Las Vegas Nevada

I purchased 2 tires for my wifes car at tireworks about 3 weeks ago.my wife comes home from work and says to me, honey one of the tires has a big bulge on the side of it!I told her that I don't believe you should be driving the car,It doesn't look safe! Since I had bought the tire only 3 weeks ago and still had the receipt I figured thet tireworks would do the right thing and replace the tire. Boy was I wrong!I dealt with someone named Ryan who smelled like marijuana.He was extremely rude. He asked if I had purchased his "extended warranty" I told him that extended warranties are a ripoff.the issue,was a manufacturers defect and that a tire should not bulge like that after 3 weeks of usage.He said well you more than likely hit a pothole.I told him this makes no logical sense.Sounds like something your trained to say to avoid responsibility for defective tires. If potholes cause this damage than why aren't ALL cars having the same damage to their tires since I drive the same streets as other residents in Las Vegas. How is it that I go years without tire damage driving over the same potholes? So Ryan you are full of it! Ryan also stated quote"you bought low end tires they only cost $150 each maybe next time you'll buy some more expensive tires and also buy my warranty.I feel that Ive been ripped off by these bandits! Stay away! Go down the street but whatever you do avoid them like the plague