Hi @Annie222
We have reviewed the details and data usage indicates the phone remained connected to US towers on the 22nd.
Easy Roam triggers per calendar day.
If you wish to dispute the charges further, please schedule a call back or you can send us a message on social media using the links at the bottom of this page.
For more info about how to prevent roaming charges, please check out this article https://community.koodomobile.com/plans-services-232910/easy-roam-understanding-how-you-will-be-charged-while-traveling-7811296
Also, feel free to check the available plans in your self serve account, as you might be eligible for a Canada-US plan: https://www.koodomobile.com/en/help/changing-your-rate-plan
With a Canada-US plan, you can use your phone without additional charges in US (some exceptions apply). More about Canada-US plans, you can find here https://www.koodomobile.com/en/help/traveling-with-your-canada-us-rate-plan