Horrible customer service _ Telkom cansellations

Horrible experience trying to cansel a wifi router I have had over 24months. Surprisingly Telkom called to offer an upgrade that I turned down citing my move to Fibre. They told me I had to call cansellations separately. While I can view my account on MyTelkom App, only the cancellation function doesn't work. I called 081180, waited forever only to be told I've multiple accounts and need to verify address for each. They couldn't take my most recent address of 14yrs , customer care wouldn't care less either. So, I'm canselling not just the modem but a line too I want nothing to do with Telkom, ever. Disappointed client of over 2decades!