Name Discrepancy

Hey, My name is Goutham S and I’ve registered with the same name for CFA program. But in my passport, my surname is expanded, i.e. Goutham Sengottaiyan. I’ve sent a mail to CFAI institute regarding the discrepancy right now and yet to hear back from them.

Any idea how long this will take? And more importantly I have my exam scheduled on July 22 -_-