What do you mean you "paid for roaming"?
You don't pay separately for EU roaming these days.
You just get a Guido membership in time for your trip and the normal membership allowances work while roaming in the EU.
What membership do you have active right now?
If it's not a Guido then nothing will work while roaming in the EU.
EU roaming only works on Guido.
Hope this helps.