How and when can I expect to receive my ITIN?
If you qualify for an ITIN and your application is complete, you will receive a letter from the IRS assigning your tax identification number, usually within six weeks. If you have not received your ITIN or other correspondence six weeks after applying, you may call the IRS toll-free number at 1-800-829-1040 to request the status of your application

I received mine within 2 weeks..