Impossible to reach call centre or any branches

I have been trying to speak to anyone @ Telkom about transferring a landline & ADSL line to a new address on behalf of my pensioner parents. I have called the call centre, held on for 55 minutes & then had the phone disconnected, I have tried to call all the branches in Cape Town & only get an automated reply that no one is available. PLEASE can someone contact me as a matter of urgency as the move is now imminent & I need to know which branch to go to as a number of branches in my area have closed down