Not receiving free data

I took a new Smartplan100 contract on 11 August 2015 at the Telkom Alberton City branch. Since the contract was taken at the branch, I qualified for 1Gb of free data every month for 24 months. I did not receive the pro-rata balance of this free data in August or the full 1Gb in September. The issue was reported and a case was opened. I was given a reference number and told I would receive feedback after 17 days. No one called me to give any feedback after 17 days so I called the customer services line and was told that the case had been resolved. On checking my data balance this morning (01-10-2015), I still have not received the 1Gb of data. When I called customer services today, I was told that the case has not been resolved as yet. I would really appreciate some feedback from Telkom.