Hello @Smiah13 ,
Welcome to the community,
Before you went abroad, did you not make sure that roaming was active on your account? If you did not, you will have to ring them:
If you something like Skype, here is a free number:
+448000798586
To contact EE customer service dial 150 from your mobile phone or ring customer service for free using web based app or another phone: +44 800 079 8586 or +44 800 956 6000.
