The charges depend on whether you are using your phone in the UK or whether you are roaming outside the UK. They also depend on which country you are calling or texting. If roaming there is a further difference depending on whether you are using your phone within the EU and selected destinations or using it elsewhere in the rest of the world.
When using your phone in the UK, calls and texts to international destinations are always charged from airtime credit. Make sure you have topped up your account sufficiently before you start the call so the call is not stopped abruptly when your credit runs out.
Rates when roaming within the EU and selected countries
Special arrangements apply while roaming in EU countries and territories. Calls made to, and text messages sent to, standard landline and mobile numbers in the UK or to standard landline or mobile numbers within the country you are visiting or within any of the other listed EU countries and territories are charged as if you are calling or texting a UK landline or mobile number from the UK. Likewise, data usage is charged at the same rate as using your phone or device in the UK. Your goodybag or PAYG allowance will be deducted accordingly.
While roaming in the EU and selected destinations, calls made to and texts sent to other places in the rest of the world are not included in goodybag allowances and are charged from Airtime Credit at a higher rate.
Rates when roaming in the rest of the world
When roaming outside the EU and selected destinations, all calls, texts and mobile data usage are charged from your Airtime Credit balance. Usage is NOT included in goodybag allowances. Make sure you have topped up your account sufficiently before you start using your phone so that you are not cut off abruptly when your credit runs out.
The charges to call, text and use mobile data abroad are different for each country so make sure to check the Roaming charges page first.