Have I missed reading about a change in how Paypal operates?

They've charged me a fee to receive imutual cashback

You should have received an email from the liquidators a couple of months ago. I would urge you to contact them (not sure if it's too late to lodge a claim but worth a try) as there is likely to be a distribution of some kind to creditors. Details can be found at http://www.fashost.co.uk/pwddocs/62...