Worst fibre supplier ever

Been having fibre issues for 3 months with low to no internet connection. Been using their whatsapp as you are not able to phone without success. Paying R1 169.00 per month for a 100/100 mbps but not able to use it. When asking them to send out a technician I get told that we will need to pay R1000 for the technician to come out if it is a fault on their line we dont have to pay but if there is no fault I am liable. So for me to report the line about every week doesnt that indicate that there is a problem. I am so desperate that I just want to cancel my fibre and go with a new supplier. This is the worst service I have come across from a supplier and I will not recommend them or vuma to anyone