help please with Universal Wealth preservation Trust

My late father got conned by these people. He told me everything was in trust and managed by these people, not to worry, on his death it would be very simple. He couldn't have been more wrong. He paid thousands of pounds to set up a trust that was not beneficial to him or his descendants in anyway. Our solicitor could have set up something better for a few hundred pounds. On the contrary these people were very awkward about releasing the funds, it took months of battling, nasty exchanges by phone and letter from us and our solicitor. We had to pay Universal's extortionate fees for signing papers, bank transfers, handling fees etc. It took almost a year from my fathers death to finally receive all the money from the trust. They had no right to keep it this long. And did they pay us any interest? a very derisory amount caculated by themselves. They had all the power over my dads estate. There is no governing body for these people, only the courts. After all the stress they put us through at a really horrible time after my father's death we couldn't handle the stress of taking them to court.
So please ask a local solicitors advice. Show them the documents universal have put in place. I wouldn't want anyone to suffer like us because of these people. They are excellent salespeople. My father was an ex schoolteacher, so he wasn't stupid,but unfortunately he fell for their sales pitch.