BILLED FOR R6000 FOR A MISTAKE DONE BY MTN

We took out a contract with MTN in Feb 2014 , the consultant set up the contract with top up and all limits set at R 0 . Once you reach your limit you can them top up with more. <br> 2 weeks later the phone was blocked due to an amount not paid .This amount was for data usage , the bill is for R 6000 .We could not understand why we were being billed for this as this was set up accordingly .<br> Immediately we went back to the store to query this , all they could do was show us on the system that all was set up correctly and log a query . The phone was then activated again and we were going to wait for a credit on the account .Of course nothing has been done we have been fighting this for almost a year and 2 months .<br> The phone has now been cut off for almost 2 weeks , been to the store 5 times to log the same query .<br> Try to call customer care , legal and billing but no answer .<br> I have lost business as clients have my cell number and now cant contact me .I cant Do a number swop as the number is blocked .We will now be blacklisted for not paying due to a mistake from their side .<br> MTN is useless and their services disgusting . <br> MTN PLEASE SORT THIS OUT !!