electricity untis

Good Day ,

I have issue here for the past 3 days or I should say only noticed now the units we buy are not the same and electricity for R200 lasts only one day . Please check for me what’s happening is the electricity leakage and what’s happening with the units all of a sudden they are less and I’m using my Capitec app to buy .

Meter number : *** this is a ******* how can electricity for R200 be 64 units but last week same amount i got 126 untis what is the difference now

I have also attached examples of the purchases SAME AMOUNTS BUT DIFFERENT UNITS .