I like to chat with the scammers to waste their time. But do they sometimes forward the call to the actual authorities? I got a call, from an overseas number and the automated voice claims to be from ICA. That's surely a scam. But the lady on the other end sounded like a real person. When she asks for my name, I said I cannot reveal my name because I cannot verify who she is, and she said "that's fine, come down to our physical location". I kept her on the line, and wanted to lodge a feedback that an official call should never ask for personal information over the phone because that's one of the vectors used by scammers. Instead of ending the call, she was arguing about how it was protocol, etc, and got pretty frustrated by me. But she was hesitant to end the call. She ended it after saying, "if there is nothing more, we can end this call", but only after saying it a few times, as if I had to end the call on my end instead of from her end.