HI,they are a UK based debt company(Leeds I think??). They will, I believe,only look for short term sustainable solutions,such as interest only/reduced payments etc., to allow you to pay off smaller debts, and then have your larger debts, such as mortgages appear easier to service. I am open to correction for def, but I think they are been championed by credit unions(some) because in a PIA situation, they and other smaller creditors will be burned in the 6/7 year deal, while the P.I.P gets paid. Again,open to correction.
You could deal directly with your lender and reach the same deals, or enter into a PIA, where there will be prob debt write down, and a return to solvency.
Others here might have more insight for you, but from my understanding, they will only reach short term solutions.