Gateway from IRIS to Oracle returns invalid characters due to characterset issue

Hi,

We're using a database gateway from IRIS to Oracle using ODBC. It has been occurring a character set issue that invalidate special characters. 

Oracle support has found data type missmatch in ODBC debug while transfering data between the databases. 

ODBC was download from official website.

Is there any Intersystems contact to send it to check whether there is a ODBC issue? I hasn't found any directy contact in Intersystems in website.