Well this area has got far worse these last couple of weeks after fluctuating within acceptable parameters all winter. It got this bad last year a few weeks after it was laid. The guy who fitted it came back to finish the tiling and noticed it himself. He rectified it by cutting away some of the wood (I think under the skirting) and re-laying as flat as a pancake so why oh why oh why has it gone back just as bad ? wood doesn't gain mass in a few months.
It’s expanded because of seasonal changes in humidity/temperatures and because we still have no idea if it’s laid on a dry subfloor, it will also have moved excessively because the floor has not been installed as per manufacturers instructions and should NEVER have been floated on an underlay.
You are asking questions that were answered when everyone last tried to assist you but you told all us professionals we were wrong.