Caller: Sara Wong pretending to be from ebay

'Sara Wong' called pretending to be from ebay from number 0411 443 794. She was calling to tell me to confirm an order for a gift card of approximately $900 (can't recall the exact amount she said). When I asked her where she was calling from she said level 10 45 Market Street, Sydney. I mentioned that I was in Sydney visiting clients so I'd drop in to see her in ten minutes. Her tone changed immediately and when I challenged her about how she got my phone number and the purpose of her call she started asking 'are you mad?' then told me I was stupid. Gave me a good laugh but I'm concerned that others might think this type of call is genuine. Please block calls from this number to avoid being annoyed by scammers.