Because of the joys of PICUS FO's are logging it. Most FO's in the UK record PF time as PICUS.
The paper work for your area competence check has the details in it and the wording. Wouldn't suprise me though if Germany does it different.
So with that additional information that you already have 300 hours PIC in the LHS and all the jobs require 500 you have a problem. Most of the insurance company's require it for a DEC in my experence.