Sure no problem - its unlimited on RL5 for domestic anyway with FNB CC.Like I said, it's been more than a month and they have not charged me when I used my priority pass.
Fnb stopped it's agreement with priority pass and moved over to lounge key. Current priority pass users can still use their cards until it expires. I think this is why I was not charged when I used the priority pass at the domestic terminal.
Also used my PP internationally and its not reflecting yet on FNB CC statement or eBucks.