Help... How do I return my partially graded Marvel card, with no cost to me? 1 1

[Brain]

I submitted a Marvel card (with a major error) for grading, using the express service.  I paid $5, extra to have the card judged for errors.  Subsequently, I received the card back with no comment or annotation of the error. The card in question is a Marvel Universe Series 1, Card Number 99, Famous Battles.   The front of the card has X-Men Vs. Avengers and the rear of the card has Marvel Girl, Card Number 9. I hope this was an oversight or perhaps a simple mistake (not willing to say anything negative, CGC has been great thus far).  What I really hope is that my Grade of 7, is not a mistake as well...   Thanks.  

 

Below is what the back of the card should look like without the error.

 

 

 

 

 

[Brain]

Found my answer... Mechanical Error/Return