You're welcome.
I asked the same thing from my embassy...to write a letter explaining that X is not another country, but a village in my home country. They refused. So I wrote explanation letter to CIC where I stated that they can check information with my embassy and included embassy's contact info (name, address, email and phone number). I mailed them a letter and followed up with 2 emails after that.
Could you be able to do the same? Explain everything briefly and provide them with contact info of the officials from 'X' country you talked to? And, of course, you can mail it to their address.
I don't know if it will help, but at least we can try.