Were Is My Cash Going

Good day around June / July I have been liasing with Cassandra from your back office and i requested to pay of the handsets and she gave me a amount of R 5980.83, so I did make sure afetr this all is paid up my bills wll be lower cause i paid up the hadsets fees, so i made a payment of R6596 on the 30 /07/17 and again another payment of R1350 +- for the monthly instalments and kept paying that amount till date so I suddenly get call i owe Vodacom R1,062.41 arrears thats ut bull**** cause i paid what im told and who ever pocketed the money needs to own up we have 6 Lines with you and today i called up customer care and was advised i alwaysd paid shot ion my account please rectify this with immediate Attention and sort the out what you need cause i can guarantee that i paid more than expected my bill was suppose to deflate not inflate i await immediate actions on this, lets not open a can of worm here, STOP ROBBING ME