The $600 in line thirty of form 1040 was the second stimulus payment of $600 that you were probably entitled to.
The first stimulus amount was $1,200 for an individual and the second one was $600. If you received both of those payments, then you shouldn't receive another one when you filed your tax return, so the $600 should not have been on line 30.
If you didn't receive the $600 before you filed your tax return, then it should still be due you and you will probably get it later on.
You call the IRS at 1-800-919-9835 or use the following link to check on your stimulus payments:
https://www.irs.gov/coronavirus/get-my-payment
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
