small ERROR registering for the 1st TYGEM - AGA Online Pro Prelim

I registered for the 1st TYGEM - AGA Online Pro Prelim; however there is a problem!  

There was no 9k rank (my rank) on the pull-down menu!!!; only 11k, 10k, 8k, 7k... 
I tried to register as 8k, but the web-site made me a 10k!

Can you change my rank to 9k? 

That is my correct AGA rank. 
Thanks! 
Sighris 

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