Moving and want to get online ASAP

Hey there I am moving and wasn’t prepared for a week long wait before my service is turned on. I selected to use my own equipment (xfinity equipment from my last plan) so that I could hopefully self install and be up and running. There was no option to self install, only the “complimentary expert install.” Wondering if there is a way I can get internet turned on before having to wait a whole week? Also can’t find a phone number to call either…