Filed I-140 in September and not approved yet

[Ashok Vardhan]

Hi

My I-140 was applied in September and I got a receipt back by mid October. When I try to check the case status, it states that my receipt number is invalid and when I called USCIS with this question, even they were unable to locate my receipt number.

Did anyone who filed their I-140 in September get approval or any any kind of communication from USCIS or did anyone ever face the issue that I faced

Please let me know

Thanks

Ashok