Beste antwoord door Amy
Welcome to the T-Mobile Community and thank you for asking your question here.
I can imagine that this might be a frustrating situation. I'm happy to see that my colleague cancelled the Altijd EU Internet-bundle. Because you never used the bundle, I think it is reasonable to get you a refund. So you will find a €15,- compensation on your next invoice. :)
If you have any other questions, please let us know! Happy to help!