If you click on the AUP it's VERY obvious. As you quoted "The condition of our network is evaluated regularly in order to give all customers the best possible internet experience." sums it up. No need to read anything further into it or try and find any other meaning to this. Its not rocket science.
I mean if this is your first ADSL line+account then forgive me. However, if it is not, then you sir are a fool. You honestly cannot think out of all the ISP's in sa, which ALL of them shape home accounts, Axxess wouldn't because they didn't put it on the purchase page. That is why there is T&C, that is why there is logic in this world, that is why you do not purchase anything without reading the T&C and that is why u are now in this situation. Yet, you are ranting and raving here about something the rest of the country has to deal with on a daily basis.