supernalcat

Hi everyone, first time posting at a forum... I was about to register for a GRE in November, but noticed that the name that I register must be the same as my primary identification documents. I wasn't able to change my GRE account name, so I emailed ETS for advice. They informed me that I must give them a test registration date/confirmation number for them to look into my account, so I (foolishly) registered (and paid) for the test, thinking that once I hand them the information they'll do something about it. Once I gave them the information, all they told me is that since I 'already' registered, there is nothing they can do and I can only get a partial refund. I called ETS customer service and explained that I registered for the test only because they said they need the registration information when I asked them to change my account name. Their customer service was absolutely horrid. The only difference with my account information and my primary ID is my given name, since my account is under my English name and my ID is under a Korean name. Everything else (last name, address, picture, etc) are the same. Will this be an issue at the testing center?