My friend has been down there a few months and said TMobile sent her a warning since it's been so long. She got a Personal eSim now but still using the TMobile but switched data over to her Argentina cellphone plan. She said it was only around $10 USD per month.they don't, but coverage is allowed for "travel" - just be careful if you're living here for 6 months like me.
1. https://www.caminodesantiago.me/community/threads/t-mobile-international-data-warning.57963/
2.
3. https://www.t-mobile.com/customers/roaming-data-alert
@William Morris