We bought season passes at the 4+ rate and now decided we want to buy 2 more for Christmas gifts... Can we still get the discounted rate or do we have to purchase them all at the same time?

You have to do them individually, any bulk deals have to be done all at once and cannot be altered or transferred only upgraded or canceled

I am almost positive that you have to get them all at once

@Alex, the 4+ rate she is referring to is the discount they give if you buy 4 or more tickets at the same time. It's much cheaper per ticket, than when buying only 1-3 tickets.

You should be able to add it to the same account

See if you can add it to the same account number.

4+rate?