Take the initiative to negotiate. If negotiation fails, a lawsuit will be filed. B&B WeChat does not actively negotiate the room rate, and the negotiation fails to bring a lawsuit. Non-payment of rent is a civil lease dispute. Article 719th of the Civil Law of People's Republic of China (PRC) stipulates that if the lessee defaults on the rent, the sublessor may pay the rent and liquidated damages owed by him on his behalf.