Caller: Security Department of Commonwealth Bank

Indian woman called and claimed they were the Security Department of Commonwealth Bank. Medium-thick accent, poor signals that could barely hear a full sentence. She said she was to check if I had authorised a payment of XX amount of money which I couldn't hear the number clearly. I asked her to email me the details. The call became even worse signal, and the last words I heard was "goodbye". 99.99% fraud because I never had an account there, and I don't think the bank would call me directly and plus wouldn't have used someone with thick accent.