Hello. You need to file a lawsuit in court to obtain a writ of alimony. Upon receipt, transfer to bailiffs. In half a year, after the bailiffs familiarize the debtor with the writ of execution and if the debtor does not fulfill his obligations, you need to write a statement to the police at the place of residence of the debtor, to initiate a criminal case. Usually after this, the debtor begins to fulfill its obligations.