Cancellation issues

I have been trying to cancel my Telkom account. I understand the way to do this is to register with My Telkom. The portal dosen't seem to be working, I registered and now it won't let me in. How am I meant to cancel my Telkom line this is urgent and I know people go back and forth with this for months. My isp told me to email ********** which bounces. Why does this need to be so difficult please can I get urgent assistance ASAP thanks