Day one isn't looking too hot. The customer service number "cannot be completed as dialed" and the only email I've received was a "looks like you may still need this" email that uses terms like "Finish what you started...." and "Get the gun, gear, or part you need now."
So, I was looking up the upper I got to ensure the barrel had M4 feed ramps and PSA's automated system is firing off emails goading me into purchasing the exact same thing I'm having a problem with.
I figure I'll give them another day to respond (mostly to see what I can do for a barrel from someone else) before putting this on Reddit and their FB page.
48 hours just to respond to an email should be plenty of time.