Indeed. That's a good first step. In addition, however, you should try and follow the appeal process listed in the FOIPA response you got, to ask them (HQ) to check against "cross" or "see" references. In the response you got it is only a check against main files.
In addition, send a new FOIPA to your local Field Office as well (their records can only be obtained by asking them directly - not through the HQ). Most major cities have a FO - your's (or your jurisdiction's) should have one too. That way you may claim you have covered all angles. This is what I'm trying to compile.
AP
I will definitely do that. Do you know how much time does it take to get those from them my friend? Thanks for help all my friends and I will need more in the road to WOM.