This is something that would need to be discussed with your landlord or agent. They may be unwilling to use it as rent while you are still living there due to a concern that if there was any damage or repairs needed they may need to take money from the deposit to deal with this. If you are leaving the property in a good standard and have no deductions needed for cleaning or repairs you can request that the deduction is taken if you are in rent arrears and still owe the accommodation provider rent. This is something that would need to be discussed with your landlord or agency.