The local authority in my case had written and spoken to the letting agents multiple times and advised them they needed a license but they chose to ignore this. They were eventually threatened with legal action and got a license. However when the local authority came to do an inspection to check the property they found a number of violations of the license, which even given a time frame to rectify did not get done.
The icing on the cake for me was after they moved a new tenant in who had all night parties, sold drugs and had knives for “protection” scattered around the flat ie behind the front door or on the bottom step. Followed by me being sexually assaulted in the communal kitchen by one of their “guests” and the letting agents sharing this information with the tenant when I explicitly stated I didn’t want it shared. I just wanted to move out as a matter of urgency.
Unfortunately we weren’t able to go to court because the new powers hadn’t come into effect at the time otherwise yes I would absolutely have taken it to court. financial loss would have been the only thing the letting agents would have taken any notice of (who subsequently appear to be very dodgy and have changed their names multiple times and director- it would appear just a different member becomes director with the name change and the former director becomes head of whatever)
Those saying “should have moved out” we were placed there as homeless with no rent in advance or deposit so it wasn’t as simple as that. They often rent to housing benefit claimants. Myself and one flatmate managed to get the money together to rent a 2 bed flat and we now flat share.