A bit off topic but I recently watched a programme (C4 I think?) which featured that guy Dave, who opened his own bank last year, anyway, he had decided to loan money to a few people who had got themselves into trouble with pay-day lenders. The upshot was that he ends up visiting London with a briefcase full of cash intending to pay off a number of outstanding loans at the registered UK head office addresses of a number of these companies, including Wonga. In every case he found that each head office was either an empty building or just a forwarding address above a shop or behind a burger joint etc. In the end he couldn't pay off a single penny in person as each of these organisations are subsidiaries of massive (often American financial companies) where the way they operate in the UK has been banned in their own countries.
These faceless organisations then just export this outlawed and arguably dishonest sales and marketing tactics over to GB, the reason being, our government allows it.