Yes and no.
We both get admission and both visits are reversed each time from what I remember. It doesn't get counted as a guest, but me entering 2 times.
Ah alright, I get you... The extra CC circumvents the check being done by the person at the front desk... and FNB just reverses the charge as normal.
But see my post above... I think they make you scan a QR code generated from the app now. Not sure how much that will affect it.