Both those are for line activation, not switching devices. My main line currently is with AT&T small biz and I’ve moved from Pixel 6 Pro > 7 Pro > 8 Pro by just popping the sim in. No charges. When tmo postpaid was my main provider, same thing, charged once initially and that was it. For tmo prepaid, I currently have family on lines and again nothing beyond the initial sim charge. And as I recall, esim is free (as it should be).
If you don’t go to a store for assistance or do something weird (try and move from a phone to a tablet or something; and that limit is only for postpaid lines afaik), there should be no fee. It’s only when you involve a staff member do they charge you for assistance. Unless tmo changed the policy for postpaid lines in the last 2y, my experience doesn’t match yours o.O
Both those are for line activation, not switching devices. My main line currently is with AT&T small biz and I’ve moved from Pixel 6 Pro > 7 Pro > 8 Pro by just popping the sim in. No charges. When tmo postpaid was my main provider, same thing, charged once initially and that was it. For tmo prepaid, I currently have family on lines and again nothing beyond the initial sim charge. And as I recall, esim is free (as it should be).
If you don’t go to a store for assistance or do something weird (try and move from a phone to a tablet or something; and that limit is only for postpaid lines afaik), there should be no fee. It’s only when you involve a staff member do they charge you for assistance. Unless tmo changed the policy for postpaid lines in the last 2y, my experience doesn’t match yours o.O