I just had a response from the ASA about their undeclared ads from their London trip.
Seems like they are asking them to properly declare the ad both in the title and also during the video to make it clearer what parts of the video were gifted.
Your complaint ā Park Plaza Hotels Services (UK) Ltdās advertising in association with The Ingham Family
Thank you for your complaint about Park Plaza Hotelās advertising in association with The Ingham Family. Based on the information you provided, we consider that the ads are likely to be a problem under the rules we apply. We think that the issue can be quickly resolved if Park Plaza Hotels and The Ingham Family are willing to make changes. Therefore, we have contacted them and asked them to add a prominent label to each caption, such as ā#ADā or similar. We have also asked them to add a similar label to the parts of each video advertising Park Plaza Hotels.
Once we get an assurance that they will change the ad in a way we consider resolves your complaint, we will close the case. Basic information including the advertiserās name and where the ad appeared will then be published on our website
here.