I had read previous reports praising Simon and his customer service, I now know myself just how good it is. I received my Chimella this morning and thought I had broken it, it appeared to be stuck open! I sent a message from the website and within half an hour Simon phoned, then Whats Apped me to see exactly what had gone wrong. To my relief, I just had to apply a bit more pressure on the button (2 thumbs instead of 1)!! I’m hoping its the right size, it’s gone up and stayed up, so I’m looking forward to a warmer front room in my Victorian top floor flat. Many thanks for the VERY efficient delivery and help