USCIS has informed AILA National that:
“Due to the high number of I-129 petitions filed with USCIS recently, customers will experience a longer than usual period of time to receive their receipt notice from USCIS. Usually customers who have received a delivery confirmation can expect to receive their USCIS receipt notice within 30 days of that date. However, due to the unexpectedly high volume of applications, it may be an additional 2 to 4 weeks. Customers who do not receive notification of receipt within 60 days of their delivery confirmation date should contact the appropriate Service Center for further information. This is a temporary situation and we apologize for any inconvenience this may cause.”
AILA National suggests that checks should not be voided and a stop payment should not be placed on checks that have been received, but not yet receipted, by a USCIS service center. AILA National is in communication with USCIS regarding this issue.
SOURCE: “AILA InfoNet Doc. No. 12052340 (posted May. 23, 2012)”