You should still be able to select Direct Debit option as long as you can e-file your return. I had another user yesterday that wasn't offered that option, as well. Once he realized that some of the forms weren't yet available for him to e-file his return, he found the issue.
Is this maybe your situation? I'm sharing a TurboTax FAQ below that gives reasons a return cannot be e-filed.
When a tax return can't be e-filed no matter what you do
*** I am NOT a tax expert. I am a seasoned TurboTax user, and volunteer to provide assistance to TT users. Nothing I post is to be considered TAX ADVICE; I bear no legal liability for responses.***
