Roaming is only available on the $28 /mo Base Plan.
Your Data Roaming Cap allows you to limit the Data Roaming expenses authorized during a given month. It is capped at $100 by default, meaning that you cannot spend more than $100 of Data Roaming in a given month.
But, you can change your Data Roaming Cap to $300 or $600 directly in the Circles.Life app!
*Other types of roaming expense (e.g. SMS or calls) are not included in the Data Roaming Cap