Frustrated to the max!!!

Sjoh! Very frustrating service!!! Moved location, gave ample notice, thought everything was sorted. It wasn’t!! Got to the new place and the router was not the correct one according to fibre provider, phoned twice, was placed on hold for more than 42 minutes!!! Tried the live chat and all they say is phone the call centre. I can’t be placed on hold every day for 42 minutes, we work from home and Wifi is essential. Their complaints email also don't work, there normal email don’t work. Nothing works!