Power Ball Plus winnings not credited to my accoun

I play lotto/power ball via FNB app on my cell phone. This query is about the last Power Ball draw on 11th of March 2016. I had 1 number ( the power ball ) from the power ball draw - R 10 and 3 numbers from Power Ball Plus draw - R 9.90 ( the same ticket). The R 10 were credited to my FNB account but not the R 9.90. It is a very small amount, but i need to find out why? Today i called FNB customer service and spoke to a consultant who suggested that i have to call ITHUBA because they are crediting the winnings and not FNB. Tha call was ''interrupted'' after 5 min hence me not having a reference or the name of the person i have spoken to.<br> My lotto ticket is in my Purchase FNB app history i.e. purchase date, draw date etc, but i do not have Ticket reference number. Again, the amount is small but please let me know the reason for not crediting the winnings.