Hi @simoncc86,
Welcome to our Community Forums! Thank you for your first post and I'm very sorry to hear that you're having some issues calling an international number!
Have you taken a look at our International Calls and Texts page to see if this can help? Have you put in the +33 call code to when calling a French number?
You can also take a look at our Roaming in France page for more information about travel and costs. Our Roaming Hub has great tips and tricks to set up before you leave for your travels.
Please let us know if these helped at all, or if you need any further assistance.
Thank you.