Free data not received...

On the 1st of April 2015, i upgraded my mom's contract via call centre. I was assisted by Tumi. She said part of the promotion was free 250mb of data for the first year of the contract. To date my mom hasnt received the data as promised. i tried calling customer care, i have been send from one line to another and different departments, it seems as if no one knows who must assist me, I am tired of calling the customer care. I hope the conversation will be retrived to verify my claim.