I work for a real estate company and arranged to purchase an air conditioner on behalf of a client using the client's funds. The air con supply company was initially contacted by phone and then via email. They issued a picking slip, funds were transferred to the air con company, they then emailed a tax invoice which would need to be produced at the time the air con was picked up. It was arranged with the builder who was supposed to do the air con install. They would also pick up the air con. A few weeks went by and the client changed their mind and went ahead with the builder with a different air con system. I was contacted and asked to request for a refund. On contacting the air con supply company, I was told the air con had been picked up so there was no refund. I asked for proof and was sent a video of a male person unknown to me or the builder walking into the outlet. He speaks (audio too faint to understand) and one of the air con supply company employees hands him some paperwork to sign and he leaves with the air con. Clearly, the air con company employees have made a mistake. The person they gave the air con to had no proof of purchase. They are now wanting me to pay for the mistake. The air con company did say to me "we are not going to wear this one". They are now ignoring me. My question is, "is this a civil law matter or a has a criminal law been committed"? I want to take this to the police but not before I am sure I can insist they investigate. I am responsible for the client's money and need to have this resolved. It is not a huge amount ($750) but this is not my error and I should not be expected to pay for their mistake.