Hi Christian,
From what you described, it sounds pretty likely that Congstar might follow a similar pattern with the iPhone 16 Pro as they did with the 15 — meaning discounts for existing customers could show up after a few months. Of course, nothing is guaranteed, but waiting around the 6-month mark seems realistic based on past experience.
Since it’s been a few years since you last upgraded through them, it might definitely be worth keeping an eye on their offers toward the end of the year. Hope you snag a good deal