Pethetic Service

I was debited 4 times on the 31st of December 2015, I called Vodacom and was advised that it had been a mistake on their part. I was promised that someone would call me with regards to my refund. <br> I have been calling Vodacom ever since speaking to Managers and Agents, I've been given so many reference numbers and to Date Nothing has been refunded to me, its been almost a month.<br> Vodacom has The Worst customer service the workers are all ***********. I requested for my contract to end in December 2015 but I'm being told I still have to pay full in January 2016.<br>