30 Gig promotion data not loaded after 2 weeks

Signed a contract for new phone on 11 December 2017. Apart from the unfriendly, unhelpful and frustrating service received from MTN Glen branch as well as manager (left several messages for both Justin (mngr) and Connie (sales), no return calls to sort out. I am still waiting after two weeks for the 30 Gig promotional data which was part of the contract. Phoning 808 is of no help. After 4 calls tell me each time it will be loaded in 24 hours which did not happen. They stated that they can only speed it up through a manager if it states on the system that it failed. MTN is in breach of my contract.