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
Welcome to the Community Forums, thank you for your first post!
I'm sorry to hear you had some problems with your installation and everything wasn't in place for you to get set up. I've been able to locate your account and can see that you have been in touch with us since your post. Can you please confirm if you are still seeking help or need anything from here?