I feel cheated by Vodacom and they don't even care!

This is a message I received from my mom who has been a loyal customer of Vodacom for many, many years. "I'm very upset this morning, Vodacom cheated me. Last March I upgraded my contract and I was explicit about what I want. They told me that the package comes with once off data of about 20G if I'm not mistaken. I told the Vodacom Agent that was serving me that once off data won't help me because I used data on a daily basis therefore I need the package that comes with data, like with my previous contract. The Agent told me that no problem and told me that he added 1G in my package. I haven't had any problems until yesterday when I noticed that my data is not loaded. I then called Vodacom Customer Care and they said they will transfer my call to the retention department where I would be assisted with my query. Indeed that lady transferred my call but we got cut off. She then called me back and transferred the call and I got cut off again but this time she did not call me back. A few minutes later I called Vodacom Customer Care again and they transferred my call again, the call got cut off and no one bothered to call me back. Since when did Vodacom stop caring about its customers, I have been with Vodacom for as long as I can remember. Can someone please intervene because I feel cheated and misled because no one told me that the data will only last for 10 months and will fall away after that. Otherwise I would not have taken the 36 months contract. I feel trapped because I cannot afford to buy data everyday because it is expensive hence I needed the package that comes with data. Can someone please intervene!" Kind regards Octavia Nungu