Placeholder quick book and transfer?

Just got off the Destiny. Booked a placeholder with no Travel Agent. Was planning to transfer to a Travel Agent. Understand I need to do that within 30 days.

I see Disney just added a bunch of cruises to the 20% and 25% off options. Can I go ahead and use my placeholder to put a deposit on a cruise for next year and still move to a Travel Agent within 30 days? Is it 30 days from the placeholder booking or the new reservation booking?

Or do I need to move the placeholder FIRST and then go and book the cruise with the TA?