AIRTIME DISAPPEARED

<p>ON THE 07TH MAY 2016 I RECHARGED MY CELL C NUMBER WITH R12 BUT WHEN TRIED TO USE INTERNET, CONNECTION FAILED. AFTER RTYING FOR SEVERAL TIMES THERE WAS STILL NO CONNECTION ESTABLISHED. WHEN I CHECKED MY BALANCE IT WAS R0.00. IN THE MORNING OF 08TH MAY 2016 I RECHARGED AGAIN AND STILL THE SAME HAPPENED BUT THE ARTIME DISAPPEARED. I LOGGED A CALL TO THEIR CALL CENTRE AND THEY TOLD ME THE ARTIME HAS BEEN USED IN CONNECTING TO INTERNET.</p> <p> </p> <p>HOW IS THAT POSSIBLE?</p>