My refund was accepted by the IR S on Feb 1 and I e filed and direct deposit.still showing accepted but not delivered.

"Accepted" just means that the accepting computer didn't find any glaring rejectable mistakes in the data.

It will still take (usually) up to 21 days for the IRS computers to more thoroughly examine the forms data,,,,and issue the refund.   

Or, you could be one of the lucky ones where yours gets randomly kicked out for a human to look over.  It happens.