Reviews of Canada Computers in Ajax

Hello. I've visited the Canada Computers store in Ajax alongside my son, who purchased an Xbox controller and the extended warranty for it. The controller was purchased March 15, 2023, and the extended warranty expires in 2026.
This controller worked great until a few days ago when the right bumper started intermittently failing. My son tried to use a pressured air spray to clean it up and after 30-40 minutes, the button acts up once again.
We came to the store asking for a replacement under warranty. The store manager, Ronald V, stated that he can't trust us that the item is defective, and he needs to replicate the issue in store. I asked him how long do we need to be there since this isuue is intermittent and pretty random, and he said `as much as we need to'. I asked him why would a normal person come to a store with a working controller, asking for a straight replacement, and he didn't know what to say. So after talking to this person like I was talking to a wall, I agreed to leave the controller with the store for a day so they replicate the issue. My next question would have been how much time are they going to stress test a controller like a teenager would do, while doing their job at the same time, but honestly, I just gave up.
I want to say how disappointed I am with their service. My son bought this out of his own savings, and I advised him to purchase the extra warranty, hoping that he's going to use this controller for a long time. After my experience with this store in Ajax, I can tell you that it was the last time I shopped there. This Ronald V person refused to give me a clear escalation path or a feedback form, so I'm using this as a complaint for a terrible customer service and attitude towards a paying customer.