Cracked back glass of iPhone 12 Pro Max and cost $99 to repair with AppleCare+

I looked up online and it says with iPhone 12 and 13 models, it only costs $29 to repair the front and back glass damage with AppleCare+. Apparently that's not the case at my Apple store. I was told because I purchased the phone in 2020 and the new terms and updates to the AppleCare+ came out in 2021, they are not extended to my products.

This is INSANE... I'm literally punished because I purchased my phone earlier than others??

The guy told me it's either $99 or I take the phone back... very very upsetting experience. Such a rip-off...