well something alike happened to me, i bought a Black iphone 7plus 128GB a month ago through apple store online, after 3 weeks of procesing items it finally was shipped from china and sent to my home in austin TX, they tried to deliver last Thurdsday but i wasnt home, so as i wasnt gonna be home also on friday i changed the delivery to be picked up on a ups store....
i went into the ups system i changed the delivery, a few minutes later the delivery change was approved by ups and exactlly 3 minutes after that pumm a message appear in the ups system stating that apple requested the package to be delivered back to them, then from that moment (nov 11th) hell broke loose i called ups a million times they didnt do ****, i called apple 20 times called to 3 different supervisors and it didnt made a difference at all, now they allready refunded the amex cc, its like if it was in auto pilot once the process started i was allready completelly screwed, it didnt matter what i did, or how many times i called nothing changed.
apple telled me they didnt request the shipment to go back, they dont have a clue why that happened, and the options they gave me was hey why dont you go online and buy another one, and i say yeahhh sure GREAT help and just wait for another month when i have allready been waiting for two months (simfree version), or just track the website to see if some phone pops up on the austin apple stores!!
i was like WTF!! that ME solving the issue not apple, if i had the guy infront me i would have punch him in the face, so i was seeing that no matter what i did this process continued in auto pilot, so 3 days ago i bought a new one through apple store online, of course delivery dates on the 15th of december, they told me they expedited that order hahahaha, by now i dont believe anything at all, so in my opinion and my experience apple haves the worst customer service in the world, i just really hope that they send that phone like tomorrow cause i need it next week cause i allready sold my old iphone6, sad sad situation...