Caller: Woman with accent

Tell tale sign of scam call - two seconds of silence and then funny sound before someone spoke.
She was telling me she has detected fraudulent activity on my account. Wouldn’t commit to which bank she was from, trying to say she worked for The National Fraud Department and was affiliated with a range of banks, ratting off banks here in Australia. She was getting very frustrated and raising her voice when I insisted on her telling me which bank and what account the fraudulent activity was on. She couldn’t provide any details whatsoever to me other than she detected fraudulent activity from another country of $x amount 30mins prior to her calling and trying to enforce some urgency on my part and getting annoyed because I wasn’t falling for it. I told her I’d check my accounts myself and ring my banker directly and hung up on her.