Hey @Dopdor, welcome to Three Community. I'm sorry you're getting that charge unexpectedly - let's figure that out.
How did you turn off roaming? Was that in your phone's settings or via your My3 account?
Have you you sent any texts or made any phone calls while you've been in Greece? This would also count as using your allowance there, and so would trigger the £2 daily charge.
Let us know more and we'll do all we can to help clear things up.
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