I used turbo tax to update my direct deposit information,now I r s says it will mailed.whats the problem turbo tax?

[DoninGA]

What do you mean you used TurboTax to update your direct deposit information?

If you filed a 2019 federal tax return with TurboTax and had a federal tax refund requesting a direct deposit of the refund into a bank using the routing and account number for that bank then that information was sent with your e-filed 2019 federal tax return.

Why the IRS would mail a check is known only to the IRS.

See his IRS website for federal tax refund FAQ's - https://www.irs.gov/refunds/tax-season-refund-frequently-asked-questions

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.