Hi ​@Coolguy 

We have looked into it and we can see based on the usage that there is a call which tirggered the roaming charge, we recommend checking the PDF bill in self serve and the usage on your phone.

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