UNLIMITED DATA

I took out a smart plan 100 contract towards end of September and was told I would get unlimited data on the contact til March 2016, this however has not yet happened, I called their call centre on the 21/10/15 to query and was told someone will get back to me after 72 hours, case nr. ***4. <br> I waited the 72 hours no one called so I called again on the 27/10/15 was told case is not been attended someone will get back to me after 48 hours, I called again today 31/10/15 since I have not been getting feedback, I'm not happy by the way the call centre agent spoke to me when I told him I don't understand this 48/ 72 hour thing, was rude in the manner he spoke to me. Please sort this out as I want my unlimited data