We had tenants that were going to sign a year lease but decided that they were no longer going to stay in South Carolina and would be moving at the end of July. So we let them stay through the end of July. They moved out on July 26th and now they say they are owed a prorated amount for the 5 or 6 days when they left early. Do they have a right to a prorated amount when they were on a month to month basis?