*****ulant Contract Upgrade - No Service or Response

During February 2017 my cellphone contract was renewed and upgraded without my knowledge by someone at Vodacom. (this was within 6 months of me upgrading this contract legitimately) This was **********ly done and the suspects also got the upgrade handset. I became aware of this during April 2017 when I phoned to inquire why the data bundles and inclusive minutes on my contract was now different. I then laid a complaint at the SAPS as required and requested by the call centre, and submitted the required affidavit along with supporting documentation to ***** disputes email address. I have since followed up 14 times, every time receiving a read receipt, but no assistance or reference number. on Friday 18 January again I resent the documentation, this time by copy to customer services. Customer services phoned me, indicating that they would send me the reference number, along with alternate contact details for ***** disputes. Again this was not received. I feel that Vodacom is failing me as a customer, and that I have now effectively been paying an inflated contract amount for almost a year which was not authorised.