Hey guys

Wondering if anyone knows the answer here. We were hired to shoot a wedding early this year, including reception at the required venue. The images were provided to the bride and groom as part of their package and it would appear they have given one of these images (at least one that we know of) to the venue, and the venue are now using this image printed in magazines and ad boards throughout the club to advertise their events, without any mention or credit to us. Neither party sought our permission to use these photos for advertising purposes. Is this venue legally allowed to use these photos for their own promotional purposes?

As we understand it (correct us if we are wrong), the bride and groom are legally allowed to use the photos in any manner they wish, but are a third party allowed to do so?

Any help appreciated.