*******ly renewed my contract

My existing 3G contract expired and Vodacom *******ly upgraded this contract when it expired and with this upgrade the price increased. I contacted them regarding this matter and they informed me that this was *******ly done by them and that they will correct the mistake and refund me the money deducted from my account. This matter was brought under there attention in March already we are at the end of April and still I did not received my refund and again money was deducted from my account.<br> I really un happy with the service I received and this was a mistake from Vodacom's side and not mine but still they cannot correct it and it is becoming an inconvenience for me because I have to follow up every time. Al I want is that Vodacom refund my money and correct the mistake that was made by them.