After you file

Mine is still processing... I filed on January 29th also.. I have called the irs and they told me that they have everything they need and everything matches up on my side and their side. Since I got my letter on March 12th I have to wait 60 days from the date of the letter. I'm suppose to call back if it isn't sent by May12th.. it's ridiculous.. what the heck is really going on?