Haven't received my monthly data as yet

<p>I receive 1GB of monthly data together with my airtime every month, as part of my contract. It's the 4th of February and I haven't received any data as yet though, thus I am obliged to use my own airtime in order to buy myself data, in order to prevent all my airtime going out at R2 per MB. I would appreciate if you could please rectify the problem as soon as possible</p>