Caller: Scam- said they were calling from the NATIONAL CRIME AUTHORITY

Fraud - was an automated voice call saying "this is the National Crime Authority" calling that I had fraudulent activities on my bank accounts and to press (1) the speak to someone about the activities. I pressed one abd a bloke woth a thick Indian accent picked up. He just said "hello", I played along and asked what the call was with regards to? He wanted to verify my identity (following a script) and asked for full name, address and last 3 digits of my tax file number. I gave him a fake name and address and I said "if you're calling from the national Crime Authority wouldn't you have my tax file number?" and he just said "do you speak English or are you just stupid? what's the numbers?". So I promptly hung up. I called back to see who answered and got the "this phone-line is disconnected". A scam - please be careful.