Missing postal code

[Damien ALLART]

Hello,

I've read all the topics in the forum but I have not find an answer to this question : how to add missing postal codes (maybe I've just don't see the good topic, in this case, I apologies for this new one)

My problem :
For the city of Modena (Italy), the postal code from 41121 to 41126 (corresponding to districts of the city) are missing.

I've added this informations in some existing points in the map with the alternate code 'post' but today, after 48 hours, those postal codes added do not appear in the database.

Can anyone give me some information on what to do to have this new informations available in the DB?

Thanks a lot,

Regards.

Damien.