Data still not received after 17 days

Telkom has not been giving me good service. I called them on 1 March to report that I had not received my monthly 500mb of data which I pay for on contract, diligently every month. They told me that I used the data at 3 minutes past midnight that morning which is IMPOSSIBLE as I am fast asleep at that time. They logged a case for an investigation to be done and told me I will have feedback in 3 days. I called them 3 days later and the agent told me that actually I would get feedback in 72 working hours which is 7 days. I was highly annoyed as the wrong information was relayed to me. I called them back the next week and they still did not have feedback. They said they would email the back office support team for feedback. I called the next couple of days and I got the same response each time - they saw no feedback on the system and they would mail the back office support team. Obviously this email story is not working as it has now been 17 days and I STILL HAVE NOT RECEIVED MY DATA. Also, each time I call the call centre, the agents place me on hold for more than 5 minutes each and every time. This is not ethical. I would like some URGENT feedback as to when I am receiving my data??