Data Bundles Disappearing

Hi. Im very confused and disappointed in the networks billing for recharging my account. A few hours ago i tried recharging my account with R50 airtime. It all disappeared within 10 minutes with only the free cellc minutes and sms's remaining. I recharged with another R10, same thing happened. Recharged with another R50, bought a data bundle and watched it disappear in minutes while my network data was off on my phone. So far R110 worth of airtime, data bundles as well as free data bundles all gone without me even going on the internet or updating or opening an app. Not subscribed to any WASP at all. How in heavens name does this happen ? And then the call centre agents are so kind to tell me they can see iv used all the data up! Please help sort out this mess. We as clients rely on service providers in these days as a basic necessity. What if something serious were to happen to a loyal client and at that time you cant recharge because your airtime is always mysteriously disappearing.