L1Aextenstion and L2 Extension

[ceekay]

Applied for L1A extension for me and L2 extension for my son. Got the approval and they dispatched my I94 extension document and did not send my sons extension document.How should I get his document now? Please advice.

[kabkaba]

The I-539 filed by your son will have a receipt number (different from the I-129 filed by your employer for your extension), the application can be tracked by that receipt number. The receipt would have been mailed to the address mentioned on the I-539.