I prepared a tax return about 2 or three weeks ago for this lady who is an Illinois  resident.

The Illinois return was processed and accepted and she has her refund.

Today she gets a letter from  supposedly  from the Illinois department of Revenue requested additional information about who she is and other information or they will hold up the processing the tax return and not issue her her refund.

She already has her refund.

Does this sound like a scam to you?