[Dusty_Star]

Originally Posted by _NightOwl

I don't think there are any mail workers who sit inside this bank of mailboxes so she's having trouble getting help. She's moving soon so I might just have her forward her mail to me.

There aren't any maill workers who sit inside the mailbox house. Your mother should ask some neighbors when they think the workers are there. The workers arrive, dispense the mail & leave. But many neighbors are surpisingly good at knowing when your postal has the workers available. When the workers are there, ask someone who has opened their box if you/or your mother can call in through the open box. Just say Hello, hello? & when they respond tell them your situation. The solution may be any one of those suggested: jammed mail, lock needs lubrication, lock needs to be replaced. In the meantime the worker will hand your mother her accumulated mail.

Good Luck