Telkom is driving me to commit suicide!!

For more than 10 days I have been having the worse service experience ever!! After they tried to make me believe that I was at fault by having no internet they actually sent a technician......I'm on my third technician and they still haven't fixed anything!!!!!!! When I told them I refuse to pay my account because of poor service delivery they told met they will then suspend my line.....***!! Seriously I am up the creek!! How can they get away with this?! Just fix my friggin internet!! I am tired of calling and calling and calling.....spending money on even more useless cellphone data....who is going to re-emburse me for that? Telkom caused it.....utterly stupidly useless!!!