No service

Signed on for fiber internet. They sent me the wrong router. I have tried for 3 weeks to get hold of them. Wait 30 minutes at a time when calling the customer service, no answer. Must have tried close to 30 times to get hold of them, no answer. I've tried the live chat, that's even more a waist of time. Tried more than 40 times, no reaction after looking at my screen for an hour or more. I dont know what i'm going to do if I have an internet problem if by some miracle they send me the correct modem, that problem will go with me to the grave, phone in the waiting for them to answer my call