Hello, @natididi.
To change your rate plan, the service must be active. Therefore, if you have any overdue bills or top-ups, you’ll need to settle them first. Once the payment is processed by the system, the service should become active within about 1 hour.
Since you’re abroad, please also make sure you have roaming enabled so you can connect to a network available in the country where you are.
Once the service is active, you can change your rate plan through My Vodafone or through TOBi.
If you encounter any difficulties, please select my profile—or that of another moderator with the ID Name_Vodafone and choose the “Send private message” option, including your cell phone number so we can review the situation and assist you as best as possible.
Thank you,
Brunna_Vodafone