TEN THOUSAND RAND DEBIT ORDER

We have asked MANY times for a limit to be set on the data usage on all phones on our contract.This has NOT been done.We were told to set the limits ourselves on our phones.THIS DOESNT WORK.A debit order for just under R10000 ten thousand rand has just been deducted because of the high data costs on the contract and now we are left with ZERO money for the month to feed our children or buy petrol.Nobody answers the callcentre phns.How do you let a contract with an average of R3000 climb to R10000 without letting us know.We have had even less data usage than we usually do so where have those costs come from? With immediate effect I want all data blocked on each & every phone & device on the contract as well as all data bundles removed from our phones & devices.We will only use prepaid from now on.We will also not be renewing any phones with you when they are due.You are the absolute worst service provider & you feel nothing about your long term customers.I actually feel like crying that this has been allowed to happen. I wish we could cancel that entire contract immediately but of course that would cost us an arm & a leg.Sickened to the core with Vodacom and this. Angry beyond words.