It is impossible to rent a room with the hotel key.

What you want to ask is what if you can't rent a room because you have the hotel key? The method is as follows:

1. Contact the hotel management as soon as possible: report the situation to the hotel front desk or management, explain the situation that the key was taken away, and provide relevant details.

2. Replace the lock core or re-match the key: The hotel can consider replacing the lock core of the room or re-match a new key to ensure safety and make the room available for rent.

3. consider providing other rooms: it takes a long time to change the lock core or re-match the key. The hotel can consider providing other available rooms for guests to ensure that they can stay.