Vodacom not helping unless your account is in arre

I was a client of Vodacom for 5 years and did not mis one payment or made any late payments during this time, November 2014 I received a message that I can upgrade my device and decided to be a loyal client and keep my account with Vodacom.<br> I upgraded and got a device from vodacom with a monthly data bundel, when I signed the new contract I asked for a limit to be loaded of R50.00 so if I exceed my bundel my device will be soft locked when my account reaches R50.00, I took the device and when I got home I phoned customer care on 111 to confirm this limit was loaded and I was assured by the consultant that the limit was loaded. <br> January I received a data bill of R2400.00 and called in to find out how this was possible if I requested a R50.00 limit to be loaded, after being sent from pillar to post between the data department and the accounts department I was informed that the accounts department cant help me because my account is up to date and I can only contact them if my account is in arrears and I want to make payment arrangements.<br> I returned my debit order as I can not afford to pay a data bill that is more than my premium on my car, my account was since handed over for coll