I would be happy to help you solving that. But honestly, I do not know. I never heard of something like this "a.c.". My only guess it's something that may happen to people whose fingerprints are not readable after they tried three times, and such applications may be put "on hold" or something like that, until the police certificate arrives.
Originally Posted by paguy
I would just call them, you may get some of your concerns explained right away.
The best of luck!
It is not a legal advice. My understanding is based on my own reading/experience.