Use the ACM ICPS template
ACM templates have a number of different options, and it's quite easy to not select something in the variant options that is desired by the particular SIG that you're dealing with.

Double-check the options, and if you still can't figure out how you aren't in compliance, the only thing to do is to write to the folks who sent you that message with a polite question along the lines of:


  "To the best of my knowledge, I am complying with the template.  Can you please let me know what you see that needs to be changed?"