DISGUSTING ROTTEN COMPANY

My internet stopped working in the beginning of March 2018. I went to Telkom Centurion Mall to log my complaint about my internet not working. The Technician informed me it's a fault on my line and someone needs to come to my house to sort it out, this was done 12/03/2018 Ref/Fault 97CTK100318. The month is almost over and nothing has been done or sorted out. I have logged more complaints and every person tells me it will get sorted out. No technician has come to my house to sort anything out. I am sick and tired of Telkom with their rotten service. Please advise me how to cancel my internet with you useless people.