There is a thread which explains it all better than I could.
http://www.britishbadgeforum.com/for...ad.php?t=43674
This was just a 'Heads up' post. But if you want a couple of red flags:- Badge is fake/restrike, stitching on the inside is wrong for WW2 and that is just from the pictures he has posted.
Read the link to the thread if you are interested.