gp.mazzola>

Oh, thanks... So small continent and so many numbers...
Sorry I did not get the idea before. Probably a missing word in my vocabulary.

Okay - it's NOT Italian issue, it's probably euro-wide.

Even here in CZ we have to fill in two independent numbers:
1 = professionel registration number
2 = VAT registration number
(crazy thing about that is you have VAT-reg-num even whe you r not returning VAT and more there r some organisations /usualy founded by state/ which does NOT have any VAT-reg-num).