MTN has been charging me for 250MB data

MTN has been charging me for 250MB data since February 2015 till as written in my September statement. the data bundles are not send to my phone. I need the money to be refunded to me before i pay my account.<br> <br> I called the call centre spoke to Nagamso ref no.*** call record *** she advised theat she is escalating and i will get call back from escalated too department after 2 to 3 working days.<br> <br> I called the call centre after 3 working days spoke to Mathabo ref *** she advised she can see the query but not sure how far is my query and she will escalate to relevant department i must call back after 7 working days .<br> <br> i called the again after those 7 working days spoke to Sanelisiwe (capetown call centre) ref *** she advised she's also gonna escalate .<br>