My key ring along with mailbox key.. What do i need to do?

Dont understand the question

You need to go and get new lock put in. Call 1800askusps and ask what paperwork is needed. I belive it is a $40 or $50 dollars to change and will hold mail at office till fixed

Go to your local post office with your ID that matches your address. Also bring $40 for a new key to be remade. The process takes 2 to 4 weeks to be completed. During this time your mail will be held at the post office where you can pick up at your convenience.

Lost my key