Where is my mobile credit

<p>just a few minutes ago l topped up my phone with R200 airtime and 1GB of data from the FNB platform and l received notifications that my credit have been topped up and as l am trying to make a call l get the voice notification that l do not have airtime. Please am sick and tired of my credit disappearing every now and then. You can't even account for my credit usage as everytime l enquire about you give us the same old story to obtain an itemized bill. Please we need transparency and honesty or else we will quit using your services we can't keep on having these instances happening every now and then.</p>