God post roz. I have noticed the Big Issue seller outside FH Saisbury's but no more than that - so I don't have an axe to grind.

I met some Big Issue staff at an event a few years ago and got chatting to them about scam sellers (this time in relation to Kings X station). They were very interested and obviously want to preserve their good name and the true purpose of their sellers.

So I would encourage anyone who's been scammed by the inappropriate behaviour of Big Issue sellers to take it up with them and chase them for a response if need be.