Hi ​@lrnpng, please note charges can generally be disputed in up to 30 days of the bill being issued. 

We’ve made an exception and checked the charges you mentioned and as they were accidental roaming we have added a credit to your account, you can check it out in your self-serve.

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