Depleting data

<p>hi, </p> <p> </p> <p>I have a contract which provides me with 300mb of data and apparently some 75mb of promotional data.</p> <p> </p> <p>I make use of Afrihost which means my APN settings are not even on MTN's setting.</p> <p> </p> <p>For the plus 3 months that I can remember I have noticed my data is depleting when my APN isn't even changed back to MTN.</p> <p> </p> <p>This month my data, mins and sms were loaded on 21st March. I had 375MB, earlier on the 22nd I had approx 330mb and now I have 75MB!</p> <p> </p> <p>I would like to know where my data which I do not use goes to and where my data has been going to for the past few months? </p> <p> </p> <p>This is absolute *******!</p>