They are both correct in what they stated.
You just need to use your perks in the best way possible. The main thing is that, recently, the "Platinum certificates" rules changed. Therefore there are fewer restrictions!
They can help you at the Host/Hostess desk(s) if you are still uncertain about the order you need to use your perks! If you were not billed anything when you booked your restaurants, you should not have a problem, unless you order outside of the "one Starter, one Main, and a dessert" rules that some wait staff use. (Even then, there have been people who have stated that they were not charged any extra.)