"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.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*