Vodacom treating their loyal clients unfairly

I have been a Vodacom subscriber for the last 8 years and never missed a payment. In Jan 2015 I received an account for R3562.55 which was 5 x more than my usual monthly account . According to Vodacom this was for data I used. I phoned Vodacom and spoke to Bongiwe to make an arrangement , I then paid R2500 and promised to pay the balance in FEB which I did. In FEB I received another account ,this time for R5151.55. I then again phoned Vodacom and spoke to Reynolds. He advised that the minimum payment they would accept was R4000. I paid the R4000 and promised to pay the balance of R1151.44 with my March subscription.<br> This morning I received a letter from Vodacom stating that if they do not receive the R1151.44 within 7 days they would list me at the credit bureau, block the hardware , and permanently disconnect my line and soft lock both my lines. I don't know why I even bothered to make arrangement with Vodacom. THANK YOU VODACOM FOR TREATING YOUR LOYAL CUSTOMERS LIKE **** !!!