Between March 23, 2007 and June 5, 2007, notices from the USCIS listed the incorrect customer service number. Immigration lawyers were inundated with individual letters from the CIS correcting the error for each application/petition filed. The correct telephone number for the CIS National Customer Service Center is: 800-375-5283.
Although I have not heard any first-hand stories of this occurring, it is rumored that some customers who initially called the incorrect number on the I-797 forms were directed to call another number, and those who called the second number were advised that they would be charged a $5 fee for the correct CIS customer service number. A link to the notice can be found to the left (for free!).
