This was unclear to me as well. “This holiday” is not a phrase I’ve ever really heard in casual conversation or in the media register. I know the British “go on

This was unclear to me as well. “This holiday” is not a phrase I’ve ever really heard in casual conversation or in the media register. I know the British “go on holiday” but that means vacation. Their PR/marketing department dropped the ball on this specific phrase. At the same time it seems that marketing department slip ups are common these days. If they mean Christmas time, I.e. December or winter, they should just say December or winter. That would be more clear.