@camhflan : Has your friend kept his UK no or has he taken a Greek no.? If he has kept the UK no. your calls/texts will be included in your allowances. He is roaming, not you.
You will be charged when you are calling/texting a non-UK no. from the UK. You are not roaming when you do so. They count as International calls & are chargeable.
International calls & texts to overseas nos. from UK can be rather expensive but EE has a free add-on that anyone, on PAYG or contract, can apply for to give these calls & texts at a fraction of the standard rates. See The Free CALL ABROAD Add-on for Cheap Calls/Texts from UK .
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