Big O Tires and Service Centers

Not sure if this was a fluke or not but I did not have good experience coming in here. My friend was getting some work done at this particular Big O Tire. My buddy was getting all his fluids, brakes, rotors changed. I walked in with him to pick up his car.
First off, we waited at least 10 min for someone to come up front so that we could pay and pick up the keys to the car. I could tell the person helping us was trying to get us out as quickly as possible because he wasn’t really all that helpful or friendly. After we picked up the car we drove off. About 10 min after we left for the road, we start hearing a loud noise coming from the brake pad /​roter. They forgot to tighten something so something was rubbing against the roter. We go back and they tried to brush it off like it was no big deal and try to tell us about another problem with the car.
This was definitely a bad experience here. I wouldn’t recommend coming here at all. On top of that they charged my friend 50 $ for a oil change. That’s ridiclous. They didn’t even use synthetic oil.

I purchased a tire less than a year ago (9÷10÷10) from this place. I had a blow out this morning, so I went in to have the tire repaired. I had the paperwork and everything, and was informed that I had no warranty.
This is the only product I’ve ever purchased that doesn’t carry a standard warranty — I think my lip gloss even has one.
From this experience, I would NEVER buy anything from Big O.