Acceptance letter

Hello

I'm from the UK and am currently backpacking through SE Asia. I have an internship teaching English in China, starting Febuary. I'm going to the Chinese embassy in Bangkok next week to apply for an X2 visa, but have only just been informed that a scanned copy of the acceptance letter isn't good enough, an original is needed. Is this true? If so I'm totally screwed as I'm constantly on the move and have no address to send it too, or be sure it will arrive in Asia in time.
Many thanks in advance for any advice given.
Victoria