Questions about ITIN

[kmargariti]

Hello! My husband has testified all the necessary documents for his ITIN at the first week of December.
Since then we have not yet received his ITIN.
How long does it take?
Is there something that should worry us?

[Critter-3]

ITIN numbers filed with a tax return can take 3 months to process. 

[kmargariti]

I do not believe it was filled with tax return. And his accountant told us that it is a matter of 3 weeks to get it.

Are you sure?

[Critter-3]

IRS has 7 weeks posted on their web site however it has been taking longer ...

https://www.irs.gov/individuals/how-do-i-apply-for-an-itin

[kmargariti]

7 working days weeks or whole of them? And it should be sent via post office am I correct?