don't ever switch WIND system language to English. I lost my free No Stop Internet for month and had to pay for each message 0,25 EUR instead of 0,12 EUR. Switching back to Italian fixed the sms price but free internet is gone for ever..
It was the same in small coffee-bar - when we did not speak Italian they gave us "English-touist" menu where plain coffe was 2 EUR insted of 1 EUR in Italian menu hanging on the wall