Britannia Windows

I purchased a new door from new Windows,Britannia Windows 3 years ago, it was fitted on a Friday in a shoddy manner, it was not straight, not finished properly, with glass not straight and it leaked with a gap around the edge I could fit my finger in. I was persuaded this was all me, I had perceived these issues. This was the start of 3 years of hell until now I have given up. The door was finally replaced this Nov and still leaks. The quality of fitting is v poor, staff ignore customer complaints, do not update customers and fail to sort out issues despite what their website says 'no customer is left unhappy'. They would not a refund me and have ignored me again since X as when I reported the door leaking again, multiple times. Do not use this company,they do not deserve business and treat customers as an inconvenience. Passing off a highly expensive product fitted poorly. I now after 3 years remain with a door that leaked, lets in more draught than my old wooden door and I have no guarantee for it. Never buy from them,you will regret it if you do. They have no idea of how to treat customers and what is good quality. Staff want to fit and run not carrying out work properly. I wouldn't rate this co at even 1