I asked them a question regarding this. It is of some concern to me because if you register a load of funds with one platform, an employee there has sufficient access to cash them all in and run off with the money.
The reply was amazing: their liability is limited to the £50k per investor.
I would have thought this was true for the bank which acts as the unit trust trustee going bust, but nothing else. An organisaton's liability to a customer for an inside fraud should be to the full value of the customer's loss, surely?