Final answer:
A customer can surrender a rental box without the keys by completing a surrender form, paying any outstanding fees, providing proper identification, and covering the cost of drilling the lock.
Step-by-step explanation:
When a customer wants to surrender a rental box, such as a safety deposit box at a bank, without the keys, there are standard procedures that need to be followed. Therefore, yes, the customer can surrender the box even if they don't have the keys. The specific steps required can vary by institution, but generally involve filling out a surrender form, paying any outstanding fees, and the bank then needing to drill the lock at the customer's expense. Proper identification and documentation will also be necessary to verify the authority to surrender the box. The bank may also have the customer sign an indemnity agreement to cover any potential liabilities that may arise from the box being forced open.