H1 b extension
I have applied for I129 extension on June 2-2008 and i did not make any sort of enquires and i got my !129 approved on Sep-25-2008. Also i got my reciept number in 5 days. Some times they will directly send you the approval rather than receiot number if u r lucky enough
What i have been told is once we file the I-129, never change it to Premium or make any sort of enquires. They might think there some problem with the company.
I have seen many cases where people have upgraded to premium processing, and most of the cases have got queries.
Hope this helps.
--Pavan