I just looked on their site and I don't see that perk listed anymore.
Here is a list of benefits with all the cruise lines:

Participating Cruise Lines:

Cunard2

* $300 USD per stateroom shipboard credit
* Priority check-in and embarkation
* Complimentary bottle of wine or champagne


Regent Seven Seas Cruises 3

* $300 USD per suite shipboard credit
* Access to behind-the-scenes ship tour (upon request)


The Yachts of Seabourn 4

* $300 USD per suite shipboard credit
* Special bed turn-down service (one evening)
* Welcome bottle of wine


Silversea Cruises5

* $300 USD per suite shipboard credit
* A tour of the vessel’s galley hosted by a chef
* Bottle of Dom Pérignon (or similarly valued champagne)


Holland America6

* $300 USD per suite shipboard credit (available on select suite categories)
* 2-Category upgrade on outside staterooms in select categories
* Welcome bottle of champagne
* Complimentary dinner at the Pinnacle Grill (available first night only)


Crystal Cruises7

* $300 USD per stateroom shipboard credit
* $250 USD per stateroom shore excursion credit


Windstar Cruises8

* $300 USD per stateroom shipboard credit ($225 USD for singles)
* One Romance Package per cabin (deluxe hors d’oeuvres with caviar buffet, welcome bottle of champagne, chocolate covered strawberries, photo album)