Data not working in Croatia buts says I have loads of data left?

[Joeyturner]

Data not working in Croatia bits says I have loads of data left? 

[jonsie]

These are some tips to try :

• Reboot phone.
  Manually search for a different network
  If using an iPhone, change data APN to mobile.o2.co.uk
  Call customer service to check for any roaming bars
  Or if you message O2 using the social media links below, they should be able to help you with this

Click Here For Social Media Support Links VirginmediaO2