Very disappointing service!!!!

App**** on the 8th of April and I had my box installed on the 23rd of April, router delivered on the 28th of April. I can't get the router installed as instructed on their installation guide(Wi-Fi says no internet connection! ) . still have no internet till this day even though my account has been billed from the 23rd and it is paid in full for April and may. When I write an email to them, they send the very same installation guide that isn't very much helpful at this point. No one answers their calls.