Impossible to cancel pathetic service

Telkom make it impossible to cancel their pathetic service. I've called to cancel, the automatic recording simply says I have to login to telkom online, I try that, cant remember the password, click that I've forgotten password, they then say they'll send a one time pin, it takes 20 minutes to send this through and by that time the one time pin has expired. I've called three times to have this simple issue resolved, spent over an hour collectively on hold, and every person I speak to tries to pass the buck to another department.

Dear Telkom, please consider this a formal instruction to terminate my service. I no longer wish to use your services and I will no longer be paying for them.

I am going to cancel my debit order and never have to deal with telkom again. Good riddance!