Having travelled abroad twice in the EU recently and due another trip next week I am unable to access data/internet
I have enabled roaming online and on my device, and I am able to send texts and make calls
I have a S6 on 3G
As you are in the EU have you bought a pass. Best way is to do it when you get there.
EU Data Travel Pass:
10MB Travel Pass = £0.35 Text 'BUY 10MB' to 23456
50MB Travel Pass = £1.50 Text 'BUY 50MB' to 23456
250MB Travel Pass = £5 Text 'BUY 250MB' to 23456
These passes will last for 30 days from the time of purchase.