So from what I've read, it sounds like someone gave the other notice. While you should easily be able to fight this at least temporarily, you should definitely consider whether it's best for you to do so, especially if they had given you notice and you weren't compliant to the sublease that you signed with the master tenant.

We definitely aren't hearing the full story even from just your side of things, so there is absolutely nothing that we could even help point out to you. Just call the OTA.