I’ve been dealing with this as well, and it’s exactly why I hate UPS. They’re incapable of resolving anything. After two hours with them I got someone in chat to tell me it’ll be delivered to the store on the 3rd so I can pick it up on Saturday morning. I’ll give them a ration of **** if that turns out not to be true. The fact that the phones are being held right now and cannot be delivered before the 3rd by Apple’s instruction is probably causing some problems with the system. The tech support even logged in as me to verify there was no option to cancel the request, which seemed to really confuse them since they insisted I should have the option...as if I’d spent the previous 45 minutes lying about the button not being there.
In any case, this jibes with my own previous experiences using the UPS stores. I got myself in a panic reading stuff from other people saying it adds a business day. It has for me when I’ve requested the change too close to the delivery day, which is pretty much any time if you’ve got 2 day delivery like with Amazon. But when I plan in advance and make the request with enough notice it’s always been fine and arrived at the store when it would have arrived at my home. Maybe it varies by location.