The Disney Club credit is different from the first time cruiser credit. Although MS will not honor either one. First time cruiser is a $50 or $25 credit depending on room category. Disney Club used to be a $50 credit but not sure the status since Disney Club is now in its final year before dissolving. I have not heard of either offering a $75 credit, perhaps yours was a combination of a couple. In any event, congratulations on your success! It certainly is not the norm.