After a polite request to my housemate regarding entertaining on a Sunday evening and cleaning common areas after their use, the house mate has stopped paying rent. They have moved most things belonging to them from the house. They also have not paid the money owing on shared electricity, water and internet bills. Refusing to reply to emails about rent and seems to have moved out. Their name is on the lease. They requested I find someone to fill their room and I have advertised on several websites but have had no suitable replies. Please advise on my legal standpoint on recovering rent and utilities costs. Note: I did not ask them to leave - this was their decision.