I was caught last night but thankfully pulled the plug before I was fleeced.
Here's the link someone sent me (I posted on another forum about it) detailing exactly what they do. It's from last year but these scammers are making a mint.
www.guardian.co.uk/world/2010/jul/18/phone-scam-india-call-centres
Hope it's OK to post here about this - I know AIBU gets the most traffic.