Data and airtime disappearing in 2 days

<p>Good day</p> <p>I have a contract with vodacom. I had almost R200 airtime left and lots of Data, but in a day all of its dissapeared. On Friday I loaded data again and within 2 hours it was up. Keep in mind I only use my phone for whatssapp, no other app or anything. In those two days I made maybe 3 calls of not even 5 min each. I will defenitely be moving back to cell c, and my husband will do the same as he is having the same problem with vodacom (Data and Airtime finished by 2nd of the month even on a contract phone)</p> <p>With Cell C I struggled to finish 1GB a month with Vodacom its finished before the first week is over!</p>