I feel for you.
I sent back a JVC camcorder recently, as the zoom would work on its own, randomly.
The retailer sent it back to me with a 'fault not found' statement. To add insult to injury, when I looked at the still images saved on the memory card, I saw 3 pictures of the monkeys in the stock room, having a right old time with my camcorder.
In one picture, the warehouseman was giving a 'two fingered salute' to the camera!
I wasn't pleased, complained, and was promptly ignored despite repeated attempts to get some proper 'service'.
Makes you wonder how these clowns stay in business.