Although it's a US Territory it's pretty far from what you'd get in 'the states'. It's an island, they don't have the same kind of providers or infrastructure, something like only half the households in PR have a computer and only a little over half of those have broadband.

It's just nothing like you would have in say Florida, Texas, or another state.

T-Mobile is a national provider whose territory includes Puerto Rico. The lack of support is not PR-specific; it's the same company and same infrastructure.