Disgusting service provider

Ever since I've been with Telkom for fibre 25-25 it's been a problem. It starts with empty promises and poor service delivery. I have made endless complaints telephonically, I've emailed and gone in-store. Not one consultant was able to assist me. When calling they would rather bounce me from one department to the next or put me on hold until my airtime runs out. I have never had my full 25-25 . I complained but nothing was done. I complained that while on contract they increased my installments multiple times and nothing was done . Not one person could give me a valid reason for why this increase happened during my contact period and beyond.i cancelled my contract but they increased yet again and kept billing me for a service that buffers. Now they have handed me over to Nudebt because they demanding I pay for the ******* service they have been providing. No manager or supervisor to speak to EVER !!!! I wouldn't recommend Telkom to my enemy....