Three reasons to get a junior suite
1) Cost is similar to a balcony
2) You are trying to build points
3) You need the bigger bathroom/tub
Other than that, not worth it.
I would never want to use prepaid cards for such purchases.
I've never had a hold for final payment. I have had RC reject a card because there was a hold on the card for some other trivial reason.
How close to the suite is the kid's room? There have been situations where they'd let the reservation for the kid's room all be under 21 if the adult room was close.
There is no right answer. Some don't tip anything extra. Others tip insane amounts (or at least claim to).
Do what you think is right. You are under no obligation to tip anything extra to either.
It's no different than your grocery store flier that advertises something reduced, only to find the base price used to determine that promo has gone up
There's no such thing as a B2B cruise in the reservation system. It's merely an onboard thing.
You could have 100 cruises booked in a row, and the RC system sees them all as individual cruises.