Vodacom electricity coupon ****

On the 28th of July I made a purchase for eskom electricity coupon which vodacom sent me the order number and I can use to redeem so that I can receive the electricity token number, since then it has been failing to display the token numbers, however I resorted to their Twitter page and I was asked many questions for security reasons and I provided them with all the details and when I called the customer care service a robot responds, on the Twitter account I was being told to wait my matter will be dealt with and that I will receive a call from vodacom, I have been waiting, I have reached out and asked for a refund if they can't process the electricity token however they are ignoring and insisting that someone will give me a call. No longer want their electricity I just want my money back that's all.