Uncapped account

On the 14.4.15 I signed for a tablet on my existing contract. I saw 2 consultants. Satish and Deveshan at the durban north branch. I explained it was a gift for my son and must have the account capped. I told this to Satish the first time . When I went to pick a few days later Satish was off. And Deveshan advise me that Satish had documents ready and that the account was capped. I have 3 other contracts on the same account. So when 3 weeks later my phone was blocked i phoned Mtn Direct to hear that my phone accout isR5800. It was because of the tablet whose acc was not capped . When Itook the contract for the tablet I took it because it gives u 2 gigs per month. But when I took it in the middle of the month I was not advised that the gigs would be pro rata which meant half gigs for the balance of the month. I immediately went to the branch and I was told that I signed contract for uncapped. I was very upset as I had told then very clearly to have it uncapped. I then went to management who then took 4 weeks to tell me they is nothing they can so. I asked for camera footage of the day I went to reh store to see that I asked for capped. THis is not my fault. Unprofessional staf