I encourage you to call your phone carrier and niform them. It is the phone company that would handle all those parts, and they can fix it . . . if they are willing. Give 'em a call and see if you can negotiate the solution. Could be really simple, or you might have to work a little at it.
I have switched frmo the monopoly phone company in our area, becasue the did not list my number anywhere during the first year of my business (yellow pages book, white pages, 411 information, online . . . nothing). Their response was that it was a free service and they weren’t giving me any discount. No apology or explanation . . . just proclaiming no refuinds.
I switched to a reseller, and have never looked back with the 30% drop in costs, all phone function options included, and much better customer service these last 20 months.