Hi ​@RoamNoMore, it seems you were able to speak to our social media colleagues and they have already applied the credit for you. 

To avoid future charges please make sure that the data roaming is off in your phone settings and you are manually connecting to the Koodo network.

For more information on how to prevent accidental 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