Don't pay back the money you owe. Don't answer the phone. Send a message and don't return it. Is it okay to call the police?

For things that are not paid back, civil cases belonging to economic disputes are not under the jurisdiction of public security organs, and it is useless to call the police.

The parties concerned shall collect and keep authentic evidence, such as loan IOUs, debt IOUs, repayment contracts, etc. If the other party's phone is turned off, the short message is no longer available, WeChat is hacked, people run away and play missing, and creditors should also bring a lawsuit to the court within the statute of limitations. In doing so, on the one hand, the limitation of action can be interrupted, on the other hand, the court can decide whether to make a judgment by default according to the specific circumstances. If the judgment is made by default and the defendant is later found, you can enter the execution procedure, which is relatively conducive to debt collection.