For the past two years, we've gone through periods in which we've received no mail (including advertising circulars) at all for chunks of time (3-5 days), followed by a huge stack of mail. I've gone to the post office during a couple of those times to inquire if our mail was being held for some reason, they've queried the carrier, and the carrier has responded that there's just been no mail. Then we get to the "end" of this period, we receive a huge stack of bills, and late advertising circulars.
The frequency of these periods of no mail has been increasing. Like, in the past two months, it's been every other week. This week, instead of no mail, we've been receiving other people's mail. (Which I've taken over to the correct people, and asked that they complain to the post office about the mis-delivery. But they've all been kind of "eh, it's usually good mail service, so whatever.")
As I've said, I've tried to complain in the past, and it seems that our local post office takes the carrier's explanation over our complaints. I have to wonder if our complaints in the past have lead to our current situation. So, I don't know how we can complain without further retaliation. So, I ask advice here . . . what I can do about this bad_service?