Disappearance of Airtime and Data

Good day -

I am a frequent user of the internet, however, since yesterday my data seemed to be depleting quite quickly. With that, my airtime also disappeared. I have recharged both my airtime and data this morning and have lost all of it in a matter of 2 hours, not even receiving a warning msg that its running low, etc. I can just put this to the fact that you have not yet resolved your billing issues as yet and your customers are still experiencing loss of data and airtime. Please resolve this issue - I am not willing to pay and pay and pay for data and airtime when it just keeps on disappearing.