I don't think Moses would be caught wet leasing aircraft to an operator that is going to be a bad payer. He didn't build up Airtime by being a mug. So even if I didn't trust Phil's word I would not believe that one. G-WWIZ was based in Bournemouth, but is aparently being registered to new owners at the moment, if you check G-INFO.
I don't have the info Phil has, so I can't say that this is a con running illegal charters. All I can say is that some companies do try to get away with it, as a colleague of mine once noticed. His evidence helped the CAA fine that company.
If anyone comes across a company that they suspect is operating illegally, the CAA publishes
a list of companies with AOCs. Notice the lack of entry for "Unique Air".