I thought my package included European calls

[SRF60]

I have been charged for calls in Turkey. 

I thought this was a European country with the same charges.

Please help.

[pgn]

Nope - should've checked here before you travelled, I guess, @SRF60 

https://www.o2.co.uk/international/using-your-phone-abroad

Make sure to select either "Pay Monthly" or "Pay As You Go" depending on which category your O2 Service falls into.

https://www.o2.co.uk/international/o2-travel

Even Cyprus is not a safe bet: Guide: Roaming in Turkey and Cyprus 

Good luck!

[Enlli]

Turkey is NOT in the EU

Guide: Roaming in Turkey and Cyprus