Selected direct deposit for federal refund and it's on my return with correct account info but where's my refund tool says it's being mailed, why is this happening?

[skichick3287]

I selected direct deposit for federal refund and it's on my return with correct account info but where's my refund tool says it's being mailed, why is this happening?

[AkinaLO]

The IRS explains the possible reasons why they mail out a paper check instead. See below. 

"I requested a direct deposit refund. Why are you mailing it to me as a paper check? 

  There are three possible reasons. They are as follows: 

• We can only deposit refunds electronically into accounts in your own name, your spouse's name or in a joint account. 

• A financial institution may reject a direct deposit. 

• We can’t deposit more than three electronic refunds into a single financial account. "

You can see this and answers to other questions here https://www.irs.gov/refunds/tax-season-refund-frequently-asked-questions.