Hi Jelena,
As I told to Daniel, I suggested these notes as a checklist and as a warning to be careful with idea of changing the EU flag (possible troubles with VAT ID in master data, intrastat reporting and so on).
I believe the solution is in note 839466 (for instance, in spain the name of region (provincia) in capital letters). But it's an option for Daniel.
Thank you for your comments,
Regards
Eduardo