Comcast utility box very close to my mail box and seems recent digging knocked out my mailbox

Hi,

Comcast utlility box is very close to my mail box and it seems recent digging by comcast made my mail box post very unstable about to fall. Also lid of that box is not closed. Can you please help?

I am OK to set mail box post right by putting concrete if comcast promise they will not dig near my mail box post again. Note: Myself and my neighbor are sharing same mail box post.

Thanks