I recently sent my macbook into Apple for keyboard replacement, they sent me an email about a day later saying the repair was completed with a tracking number. About 24 hours late it still says LABEL created. Did they actually repair it or just print the label too early?
You should get it within a day or two. If not, give 'em a call.
When they print the label is completely separate from when the package actually reaches UPS/FedEx/USPS, and often packages from big corporations get stacked up with all the other packages from that day. When the company picks up the packages, they might scan the packages, but given how many packages are likely shipped daily by Apple. It’s more than likely that they’ll be scanned in at the distribution center. Which shipper is it?
Edit: edited for clarity
