Struggling to cancel e-mail inboxes

We have ADSL and e-mail inboxes registered with Telkom. For more than a year we've been struggling to cancel SOME of our mailboxes, but to no avail. Recently we moved our e-mail inboxes (not ADSL-line) to another service provider. We're struggling to cancel ALL our mailboxes with Telkom, but no result! Everyone is referring me to Technical Department, but when speaking to them, they say they can't help me. As I'm typing the message, I've been on hold with them for more than an hour. I spoke to someone, she put me on hold to speak to her supervisor, but only transferred me to a queue where no-one is answering!<br> After being on hold for almost an hour, someone answered from the Technical Department, once again saying what I already knew: THAT THEY CAN'T HELP ME!<br> Who is going to take responsibility for cancelling a service, which we're paying R234 per month, WHICH WE DON'T NEED AND DON' WANT ANYMORE???<br> I am fed-up with this problem. I do have other work to do, other than sitting on a phone, trying to solve a Telkom problem!