Telkom victimised me as a customer

In 2019 I had a second adsl line installed it took them 6 months to install once installed they took 4 months to activate tin which is the data part but with out fail they charged me I put in many disputes with out any satisfaction.Thus I just ended up canceling both adsl lines cause they kept on suspending both even when I payed for the first one.i put in a dispute in march 2019 requesting final bill.In 2020 June I get contacted by debt collectors say I owe R2000 to telkom I provided proof they sent me final bill /statement and I paid in full.debit collector sent me a paid up letter but on the system they handed me over and I'm on itc or the credit check as a bad payer.Now I want fibre with mweb and they are refusing to process and install I assume vumatel is also refusing.This is unfair and I'm at the point where I'm going to lawyer up and go for Telkom as i have all the emails and print outside of the disputes logged.