Yesterday I placed an order for a Quickstart kit, however I've had a look around the house and can't find the required wall socket - so it seems like I'll need an engineer out to install one but can't find anywhere to book a visit.
start outside and look for the external wall box - 6" square ish usually on wall facing road or pavement - brown or grey usually - follow any cables that come from it and go inside - if there are non look inside opposite external box as they may just have drilled through wall - as said it may just be a cable rather than an internal wall box
if you find a cable you need one of these to attach the cable that came with the quick start kit