Are you insane?

I recently Cancelled Telkom as my ISP as they where unable to fix my connection speed. Went over to Crystalweb and was up and running in 30 minutes. My Question is how do i pay R770 a month for adsl 4 meg uncapped and after i canceled telkom as my ISP they now charge me R631.00 Per month Just for the line rental??!?!?! So you are trying to tell me i used to pay 139 a month for full uncapped 4 meg adsl? and the rest was just the line rental?!? You people really need to sort this out. I am so SICK and TIRED of having to struggle with you guys from your *********** technical department that could not sort out a small problem that forced me to move over to another ISP and now you are even getting my Billing wrong? Do you people wake up every morning and think how you are gonna ***** up my day?!? I have logged a fault with your billing but as normal have not recieved any feedback. Sort this OUT NOW.