Upgrade without my knowledge

Nonsensical experience having to use their services! I have a wifi router with them.. 40GB. They upgrade it without my knowledge... Next thing I'm being billed more than my budget.. so I call them enquiring then they tell me about the upgrade and I tell them I didn't know about it so this lady tells me about how it was on special so it's a good ideal I then agree to not just leaving it like that and making payments so I make the arranged payment of R1500 ... 2 days after my phone and router are disconnected so I call in asking what's happening so Thabsile (Team leader) promises to assist by reconnecting and collect on the 26th of March..... 4days after its still not working so i keep calling.. Spoke to about 3 consultants who just didnt know what was going on.. Only to find my case was not even sent to anywhere else to seek assistance as promised so now I am stuck with a phone and router for over a week not working .

I am told to wait 2 more days. THIS IS UNFAIR!!!