If you check it more than two or three times per day, that is the message you will get, or a similar message that is locking you out, or that the information is wrong or doesn’t match their records. There’s really no reason to check it more than once a day because it doesn’t update but once a day. And remember that the information you give it has to be the exact information that is on the last income tax return you filed, including the exact name, address, and amount on the adjusted gross income line of that return.
