I'm a 3 customer and have moved from Dublin to belfast for the next four months. I had my phone unlocked so as to get a UK sim when I moved here, but then when a friend reminded me of the change in roaming charges within the EU, I kept my Irish sim card. My understanding of the new roaming charges is that you retain the same package you have in your own country. I currently pay €20 a month for free texts to everyone, free calls to 3 and unlimited data. However I topped up two weeks ago and after only a couple of phone calls, my credit is nearly gone. So I'm worried that my data usage and texting is also being taken out of my credit and wanted to check if this is happening?