I am in NSW and recently advertised my car for sale on car sales. I had many interstate people and nothing until last Sunday, I had a guy coming up from Sydney to view the car. I hadn't heard anything from him and was waiting. Now I'm not sure he would turn up. Whilst waiting, I received a phone call from a buyer who showed interest earlier in the week and stated he wanted to purchase full, asking over the phone. Told them I had a guy coming up and he stated he would put the deposit on the car via The Internet. Guy turned up and put the cash deposit down there and then the deal was done, as no money was received via The Internet. He didn't turn up until Monday this week. I had stressful night as I wasn't sure the other guy in Victoria had sent money and didn't feel comfortable doing business with him. I was scared it was a scam as he hadn't personally viewed the car or followed up our initial conversation on Wednesday. On Monday morning, I told a lie to the guy in Victoria that car was stolen and couldn't sell the car to him and would like his banking details to immediately reimburse his monies. His deposit subsequently came into my bank account and I spoke to him in the afternoon continuing the said lie and he was happy to receive the refund. Later, he asks me for police report which I declined. The next day, I got a solicitor's letter of demand, demanding I complete the sale and he has registered interest in car on PPSR Where do I stand under Australian Consumer Law?