OK, sorry for the duplicate question but I wasn't able to find clarification in the preceding 25 pages.....

I got the "two stays = 1 free Cat 4 certificate". My question is what defines a "stay"? The T&C seem to suggest that a "stay" is "consecutive nights" meaning at least 2 nights at the same property. Is this in fact true?

In the past a single night also qualified as a "stay". Did this change for this promotion?

Any definitive clarification is appreciated.