I think the Lorraine show uses him when nobody else is available (I agree he probably just does it for expenses, no actual fee). He bangs on about IACGMOOH but he wasn't first choice for that, he was a last minute replacement.
I just tried googling to find out how much he got paid, couldn't find anything but this popped up. It's funny AF -
According to The Mirror, Jake will be raking in a six-figure salary next year, thanks to modelling, music releases and personal appearances, all of which are being put in place by his management.
There are offers already being discussed for modelling and other projects and he finally has the money from his appearance on the show to go into the studio and make the music he wants.
2015 is going to be a huge year for Jake, this is just the beginning.
Jake 'Set To Rake In The Cash' When He Leaves The Jungle
www.huffingtonpost.co.uk