Data share no working

HI<br> I tried for two months now to share data between my mtn accounts with no joy. I had my tablet ****** a few months back and did not have insurance so had to keep paying mtn. So i decided to data share the data with my cellphone which are both my accounts. i have phoned the useless call centre at least 8 times and they have no idea what to do. i went to the store in pavilion durban and they say you cant data share from a contract account. What is going on with mtn, i left vodacom for mtn a few years back and its the biggest mistake i have made. the call centre and the stores say two different things. i want to close both my contracts with mtn, pls send me early termination numbers so i can move on to a better network. thank you REQ:***