M D L Doors 638905 Ontario Limited

Purchased door and it soon warped. Two service calls from the installer and one from MDL doors in London I was informed that the company that makes the core of the doors will only come good for the door if the the warp is more than 1/4 of and inch. Did I mention I could see daylight out the door and insects where getting in. The core of the doors are purchased from China. Now I see the problem. Have you ever purchased anything from China that was quality. No to Mdl doors