Is it necessary to inform relatives when something is accidentally damaged, or should one give charity and pray for them, or send a monetary gift?

If you damage something in an elevator, you must guarantee it to the homeowner; charity or supplication is not sufficient. You must deliver the value of the damage or its equivalent to the rightful owner, even indirectly without informing him. Your liability is also cleared if the homeowner pardons and forgives you, and it is permissible to seek forgiveness without disclosing your identity.