Mavis Discount Tire review: Ruined transmission instead of changing oil

Hello, I took my 2016 Nissan Altima in for a standard oil change. Upon leaving the store at 1881 Epps Bridge Parkway, Athens, GA 30606, I noticed my transmission acting funny. Around the 50 mph mark—along with going up hill—the transmission would jerk and the RPM's would spike. I ended up having to pull over. I looked under the car and noticed fluid around the Transmission drain plug which is about 6 inches away from the oil drain plug. I took the vehicle to a local mechanic and after inspection they told me that there was hardly any transmission fluid left in the transmission. Their assessment was that Mavis must have drained my transmission oil by mistake. Which matched the fluid around the plug that I saw. But this ordeal has ruined my transmission and now has to be replaced. Driving the car without any transmission fluid in it caused the CVT style transmission to slip. Only fix is to replace it. This mistake is going to cost me $5k to fix (cost of transmission and labor). The store manager—Anthony—at 1881 Epps Bridge Parkway, Athens, GA 30606 told me on the phone that the tech working on my vehicle had been fired. What does that tell you?