Unable to contact Telkom from Australia

My 83 year old father left South Africa to live with me in Australia several years ago. We have since found out that Telkom have been deducting R500 from his South African bank account for his previous home phone rental for this entire period. I have been trying to contact Telkom for months to cancel this to no avail:<br> 1. Overseas contact number does not function<br> 2. Cannot email via the Telkom website as it requires a local phone no. and will not accept overseas dialling code<br> 3. Have posted on the Telkom Facebook page with no response<br> This is terribly frustrating as he has lost a huge amount of money from his meagre pension and so far we have been unable to stop it!