Earlier quoted context omitted.
Good luck. I’ve tried to replace battery in mine 12 mini last week - with no success. I had to leave my phone for 4 hours or several days (if they brake screen during battery replacement, they will wait for replacement phone to be shipped overnight). Also representative was convincing me to buy a new phone - saying that battery replacement won’t help much because new ios versions has features which high battery usage…
Oh boy I hope that doesn’t happen to me. It took them a week to get iPhone 13 mini battery in.
They didn't try to upsell me at all, but I ended up getting an SE3 anyway (I didn't realize there even was a newer SE).