Good Day

Can anyone tell me how to get hold of the Department of Labour regarding the registration of clients for ROE electronic submissions, I have tried to phone them since Monday and nobody answers the phones or they just stay engaged, we have even sent e-mails and they do not respond to that either.
We are an Accounting firm who have to complete these forms on behalf of our clients, the only way I see that we can register is one by one using the clients ID numbers, Is there no other way of registering these clients under one roof like E-filing?
The deadline for these submissions is 30 April 2013