All the time in the world for potential customers, none for existing ones

As usual, Telkom service for existing customers is shocking while they waste no time in helping you if you are a potential customer. Over the past two days I have spent over 90 minutes (if not more) on hold for the 10213 number (option 1 then 3). I am trying to upgrade my landline. Finally, after 2 days and at least 30 on one call minutes I get through to an actual human being, (whose manner was not great by the way), tell her I want to upgrade the line, only to be put on hold again and then have the phone put down on me. Then, I think let me try new sales - lo and behold, someone answers the phone within a minute (obviously Telkom only cares about signing up new customers, not servicing existing ones) only for the guy to tell me I need to do exactly what I was dping,a dn that I will just have to continue holding. Shocking Telkom - I have also left an enquiry on your website asking someone to call me back, but of course nothing. I was actually considering moving my mobile to Telkom (stupidly, as I had issues with Telkom about 18 months ago but stupidly thought maybe they had jacked up their act) but will now DEFINITELY not and will DEFINTELY warn anyone else against using Telkom for ANYTHING, no matter how good their deals seem, as once you are an actual client of theirs you mean less to them than the dirt on the bottom of their shoes.