Need a landline number to phone Telkom

Good day, I've cancelled Telkom ADSL due to poor network, more off than on, had 3 technicians coming to my house, each one saying a different story to the other. Now all I want from Telkom is to send me written proof of the amount I owe, but I cannot jeopardise my job by spending 15-20mins on the phone waiting for someone at 10210 to pick up. Trying to contact them via their website feedback form has proved unsuccessful so far. I received calls from Maile (on 015 nr) re: my outstanding account. He phoned me to advise me of o/s balance, I asked him to send me written proof of this, spelt my e-mail address for him a couple of times, the next day I phoned him stating I'm still awaiting the e-mail, he doesn't know what I'm talking about!!! And makes me, the customer, out to be a **** as he couldn't recall telling me he will send me an e-mail. I want to settle my account with Telkom (not that I think what I owe them is worth the service I received), but being a good citizen, I don't want unnecessary issues with debt collectors phoning me. So please just send me a landline nr so that I can speak to someone to send me an updated statement as the one on e-service shows wrong amount.