Refund due, advise response will follow

I was advised on the 02/02/2016 that they are investigating and I will receive response shortly on my request to me refund, after 8 weeks, of being overcharged. It is now also a week later, after I was advised I would be contact, still no response. I even phone to the call centre and request for someone to phone me back and provide feedback that is also more than a week ago and still not feedback received.<br> <br> All I need it know is when will I be refunded as your company over charged me. I have experienced the worst service ever from Telkom, had issues the entire 2 years of my contract as my address was wrong, never correctly updating information or debiting the correct accounts. Please just refund me what is due as you were willing to take my money for 2 years with out fixing your mistakes.