Transmission Gear Slipping problems of the 2016 Mazda MAZDA6

I purchased my automatic transmission 2016 Mazda 6 from the dealer as a certified pre-owned vehicle with only 1,800 miles on it. I had the vehicle for only a week when I started to run into issue. The result was a new transmission for my car at only ~2,700 miles. The transmission was slipping which made driving and acceleration unsafe. When I would come to a complete stop for a few seconds at an intersection, after releasing the break pedal, there would be a slight delay before my car kicked into first gear. The car would stall a bit and then it would kick forward very abruptly. The issue would also occur when I would shift my car from reverse to drive. The car would continue to roll in reverse a little bit after I've shifted to drive, then it would stall and kick forward very abruptly. I took the car into my local dealer to get it checked. I was able to reproduce the issue fairly consistently so I was able to show the service technician the problem. After the dealer spoke to Mazda, the dealer informed me that my car needed a new transmission at only 2,700 miles. The new transmission would be covered under warranty.