Perhaps I'm a bit stupid, but I'm lost here.
My wife and I are booked on the New Zealand Intensive Voyage on Feb 23 (booked two months ago today). When we booked, the associated "Share adn Save" promotion featured a half-price fare for the second passenger plus free wifi. Today, the same-named promotion for the same cruise also includes a $500 onboard credit. When I attempted to research the Best Price Guarantee to see if it would apply to this, I find that apparently every mention of the BPG has been scrubbed from the Azamara web site. Even the link Bonnie provided above redirects somewhere else.
Under the advertised terms of the BPG, it seems to be that we should be entitled to the $500 onboard credit. But given that the BPG seems to have disappeared from the Azamara universe, I'm not so sure.