Can 800 yuan call the police if he is cheated in buying a cat?

This situation can be handled by calling the police, as shown below:

First, you can report the case to the local public security organ, because fraud involving life and property is illegal and criminal. You need to provide relevant evidence, such as purchase contracts, receipts, text messages, etc. Prove that you were cheated in buying a cat. The public security organ will investigate the seller and deal with it according to the investigation results.

In addition, you can also protect your rights and interests through civil litigation. You can bring a lawsuit to the local court and ask the seller to refund the money or compensate you for your economic losses. In this case, you need to prepare relevant evidence and ask a lawyer to assist you in the lawsuit.