Blatantly **** to by MTN retention consultant

When I requested my contract sim to be moved to prepaid, I was offered a deal of R30 per month for R30 airtime and 20gb of data every month. I immediately accepted it and got the data in the first month. However, since then I have not received any data. Then I was told today on twitter that my package does not include data. I was clearly and blatantly **** to and MTN has breached their contract with me. I request that this breach of contract be immediately remedied