only my child and my checks cashed, but not principle

7.2 filer to NSC. 8/24 3 checks cashed, but only for my 485 ande 765 and my child's 485. My hu*****and who is the main applicant's check wasn't cashed yet. When I check the online status using the number on the back of my 485, the receipt notice says "...we received I765..." It seems they put 765 for the check instead of 485, while I checked 765 receipt notice according to the numberon the back of 765 check, there's no information that could be retrieved. What can we do now? So many mistakes made by USCIS.