Poor service

We canceled our service wef 1 may sent their equipment back and it was received on 6 may. For the past 2 days trying to get an answer as to whether or not they have released the line so that our new service provider can install our new Fibre line. We are constantly put on hold by the call center if you can call it that as you have to use a stupid WhatsApp messaging service. When you do try phone the call gets cut.