Note that two problems are the most common causes for rejection of applications.
Per RFC 2182, at least one secondary nameserver must be on a different international backbone than the primary server.
Registrations must be from organizations with a real presence in the country and with a demonstrable intent to use the domain name on a regular basis on the internet. I.e. vanity, placemark, ... name registration is not appropriate. For trademark registration, see the trademark office.