I have grown really frustrated with a specific company downloading stock video from Adobe and reselling it as their own. I have reached out to Adobe with no response. Check out and let me know what you think!
You can Tineye all of their content and find it on Adobe Stock Video.
Please understand that this procedure is mandatory and serves the protection of all contributors and needs to be complied with.
It sounds as if you aren't the creator of the videos though? Well, you have no knowledge of what contractual arrangements where made for these videos. A video creator can license their videos through multiple services, without telling each other.