19-07-2017 10:18 PM - edited 19-07-2017 10:19 PM
Not sure what you mean. If you mean will your data work abroad, it depends on where you are going (inside or outside the EU) and if you have roaming activated.
Please see EE roaming guide here.
19-07-2017 11:10 PM
It could! For starters you can't use more than 15GB / month in the EU if you have more than that.