Free Apple TV subscription
When buying a new device you suppose to get a year free subscription of Apple TV, but I didn’t receive any offer while my friend did. How come I didn’t?
iPhone X
If you qualify, then you would find the offer in the Apple TV app on your new device.
Get Apple TV+ free for one year - Apple
If you qualify and did as described, and you still don't get to see the year offer presented, then contact Apple Support for assistance.