I have been denied because of social security number for my kids and I have made sure that they are right so what do i do if it does it again

[ee-ea]

Mail the return on paper.

[fanfare]

Check with SS Administration to verify you have the same SSN for your kids as on file with SSA.
IRS is not processing tax returns until after Jan 28.

Sometimes IRS is out of sync, then you do have to file via US Mail.