Certificate Problem

Hi,

I don't know this is the right place to ask this question, so if it is wrong, sorry for that. I got a NSE certificate but there is a mistake. My name and surname have turkish letters. Therefore, in the certificate, these letters are seen like "?". Is there any way to change my name and surname? (In the profile page, I couldn't do that) How can I overcome this problem? Also, I cannot create new account because there is no way to create a new email address in my company. I am waiting your help. 

Thanks.