You need to call USCIS and talk to someone in Tier 2. We had that happen with my husband AOS. We got the letters saying they had received all of them and to wait for further instructions. We thought it was strange that he got a notice for his EAD biometrics, but had to wait until at least 30 days had passed to put in an inquiry. Turns out they (USCIS) had entered it wrong. Now it shows they received his fingerprint fee for AOS in April, rather than February. It's set the whole process back two