It's been my experience, (which is limited), with PSA, it depends on who you talk to. You can forget a return email... you'll be waiting a long time, and don't hold your breath. I've gotten results once by calling CS and waiting the 45 minutes or so to speak to a person, depending on how busy they are at the time; the rep listened to my complaint, checked my order # and said they would send me another part to replace the defective one. If you are lucky, you will get a CS rep who can make a decision without running to their supervisor. If they say they have to ask their supervisor about the issue, that's not a good indication your issue will get resolved.
The PSA rep here on this forum seems to care about the company's reputation first and the customer's concerns second. I actually thought it worked the other way around, and one would naturally benefit the other. But the rep here can get you some results and your issue resolved. Not sure what their job title is at PSA, or how much authority they have, but they seem to want to get customer's issues resolved.
They likely have today off, being a national holiday, and don't spend time here during their off days. (But I'm just speculating)
Hang in there, and good luck!