Hi
I did matched betting for a few months at the beginning of this year. I signed up with Profit Accumulator, and worked through all of their beginners offers, as well as quite a few of the advanced offers. Altogether, over a 4 month period, I made about £450. I've not bothered for a while, as I'm quite busy with other stuff at the moment, and haven't got the time to devote to it.
I didn't find a problem with any of the bookies that I registered with. Certainly all of the big ones like Wm Hill, Ladbrokes etc., didn't want a photo ID. There was one of the advanced offer ones which did (can't remember which one). And yes, it is annoying that it was only when I came to withdraw my winnings that they asked me to verify my ID!
I would advise if you're going to do it, to go via one of the sites such as Profit Accumulator; I found their advice invaluable, and wouldn't have attempted it otherwise. If you follow their guidance, you will make money. I just found it quite time-consuming in terms of matching the odds, as well as checking and re-checking that I'd got it right (I've never been into betting, so wasn't confident about it at first). I'll probably return to it later in the year when I've got a bit more time.