Multiple Dwolla accounts
Why can't I have more than one bank account in Dwolla and select the one I want funds transferred into?
Dwolla is a third-party provider so we cannot accept feature requests for their service.
To answer your question, though… A Dwolla Direct account allows for only one bank account, because the funds (once received) are immediately transferred to that bank account. There is no middle stage where the funds sit around in an account waiting for you to withdraw them. Only one bank account is allowed, because there is no time or opportunity to allow you to change bank accounts on a case-by-case basis. If you want to change bank accounts, you would need to delete your existing account and add a new bank account.