My mail is on hold but temp delivery mailmen continue to deliver it. No one answers or the line is off the hook when I call the post office. Pls advise

You may need to go there in person or call their Customer Service 800 Number

Why my mail is not deliver regularly. Then sunddenly after couple of days my mail box was full of mail and won't even fit inside the mail box. I don't know if this is the policy of the POST OFFICE Zip code 20745. I called up some company that I expect the delivery and letters that suppose to arrive they told me it has been mailed and thought I alredy got them.