Electrical wiring not installed to British standard by the installer and no test certificates issued. This has resulted in the electrics tripping when you try to use the installed cooker and hob together. Have gone back to the branch numerous times, but get no support or help just get comments like, that person left along time ago, the installation manager is very busy or will call you next week. Never had a call from anyone yet. The installer visited once and confirm that he had installed the wiring incorrectly, but would put it right, never saw him again. It’s clear that they are happy to take your money but if you have a problem they are not interested and the guarantee they give not worth the paper it is written on. My advice use any other company but not Wickes.