I remember years ago needing to change my EFTPS password for a new bank account.  The rep told me it could actually take a few hours to update in EFTPS. The IRS systems are very antiquated.  Still, this has all been and handled very poorly and I would suggest writing to the IRS and letting you representative know.  The whole situation has been a mess but there will little incentive for them to act unless we all jump up and down.  Unfortunately, that just seems to be the way it goes.  I've spent the last couple days compiling a letter and documentation to send in regarding a rejected payment in early January,  Hoping  the IRS will take pity and allow an abatement..  So between the penalty of $900 I'm out, the loss of billable time, AND the loss of a client this has been a very expensive lesson.