Dear Ben, your purchase was from persimmon homes and not directly from ourselves. As such you should air your grievances with them regarding the missing key. As you are aware, I did try to locate the key for you but unfortunately we couldn’t make contact with the previous owner due to a number change. At the time I did recommend visiting persimmon for assistance. Furthermore the boiler was shut down by the previous owner to avoid leaks and issues at the property whilst it was vacant not goodchilds. I personally came and visited you and set your boiler up to save you an engineers call out. I remember this because the boiler had a tricky reset process and I was on the phone to the engineer for 15 or so minutes around 5.30pm on Your completion day. We can only apologise that your sold board was left up a little longer than usual. Please rest assured that if our board did do any damage our contractors insurance would be there to help ! Wishing you all the best in your new home.