The rules, plain
7 days
Clean handover, nothing owed: full refund within 7 days of lease end.
14 days
Deductions apply: refund within 14 days after the property is restored, with itemized proof.
21 days
Tenant skipped the exit inspection: refund within 21 days of lease end.
The deposit must earn interest at the rate of the bank account where it is held, payable to the tenant.