Calling 10210 No answer

I am trying for the past 2 days to get in contact with Telkom to upgrade my adsl line speed. I wasted about 8 Hours holding on to an irritating sound clip that keeps on playing over and over and no one answers the phone. Then i tried the billing desk and they answer quickly but just transfers me to sales and the same story just holding the line for 2 hours at a time. One should think that the sales department would answer quickly because a sale means money. is there any numbers to contact??? not even the telkom shop in my area is answering their phones. this service delivery is poor!! they dont even have that option to phone you back. Telkom really needs to jack up their service!