i mean that's pretty late in the scheme of things. these are hot chips, if you only just placed an order in September, then I can understand that the supply would be exhausted by then.
I pre-ordered on May 4th 2021 from WiredZone, who cancelled my order without warning on May 24th. I then placed a new pre-order with shopBLT on May 24th, 2021, and didnt get to actually order my CPU until Jan 4th, 2022. (arrived a few days later)
if you go back to the first few pages, you'll see that many europe based users were getting Milan chips around May/June 2021. the only people in the US that had them seemed to be reviewers or huge OEMs.