Telkom worst company ever

Waiting for 3 years for you technical agent to come and check my router i stoped paying due to no comunication from your side and know you want to increase the total price to over 21000 just because you dont send out the support?how many time must we phone or email you and still you dont deliver your support .that is brake of contract . If you did not know that?so you can take your bill and shuff it