After you file

I called the IRS about my 1541. They looked into it and said that my account was flagged for review, but that a letter had not been generated and sent out yet. They told me March 4th is when they begin the review. I know some people on here have been told that info. Has anyone who have been told that info seen an update in their account, or received their refund? I know there is talk on here that some people think it is just what the system is spitting out, but in reality they are just behind on the return.