Business ProfileforMcDavid Acura Plano

I purchased my Certified Pre-Owned 2018 Acura TLX A-Spec on 12/5/2020 at David McDavid Acura in Plano TX. I visited the dealership on 6/26/21 and 12/24/21 and informed them that my key fob was not being detected intermittently when attempting to unlock the door with my hand and here had been a few instances where I had tried to start the vehicle and the lights flicked and it wouldn't turn over. I was advised that based on the warranty "running out soon" and since the battery check passed, to return the car to the dealership in the near future so a more extensive check can be done. On 3/18/22 I visited dealer to have them perform the extensive check on the battery and electrical system. At that time, they determined the battery was failing and needed to be replaced. It was replaced that day under warranty. However, when I went to enter the vehicle the key fob entry would not work. Subsequently, it begins working on all the doors and the agent told me it may have been because the battery was just installed and assured me it wouldn't happen again. To date, the key fob entry continues to intermittently not work. On 10/22/22 I went to start my vehicle in my garage and found it would not start at all. The dashboard was flickering and giving several system failures before the braking system eventually locked up. Since the battery had been replaced just 7 months before, I didn't believe the failure was due to a bad battery, and contacted roadside assistance and scheduled for the vehicle to be towed to the dealership. a battery test was run and the battery was found to be faulty and needing replacement. The dealership says because the new battery that was installed 7 months ago was a warranty replacement that I would have to pay $300 for a new battery. To leave with my car that day I paid but the dealership never did a full extensive check and refuse to refund me my money for the battery. I emailed the service manager on 10/22 and to date received no response.