Incorrect SIM activated on contract

I have contacted vodacom call center on.several occasions this last 2 months and have had no resolution on my complaint. I have been.billed for a service for an entire 1+ years which I have not received any airtime or data from...due to vodacom activating my contract onto the incorrect sim. I have now been.made liable for an.outstanding amount of R1300 (not receiving any benefits from vodacom) as a result...my prepaid number I use and should have had this contra t activated on, has been on.pre paid for this duration. I would like to request that vodacom take the correct measures to activate my contract on.my correct sim and refund all airtime / data that I have due to me for paying this contract from the date of inception. It is due for an upgrade in March 2018...and yet all I have is a device and no data or airtime benefits since I app**** for the contract...can anyone pls contact me with a solution to this...I will.not be paying monthly fees for a service I HAVE NOT RECEIVED!!!!!