After filing my 2021 return, I selected direct debit and my balance was debited. I realized afterward that I had forgotten an important piece of information on my original return and filed an amended return which resulted in an additional balance due. I do not recall being given the option to choose a direct debit date for this additional balance. Will this balance be debited from my account automatically on April 18? The instructions for the amended return state that I have elected to pay by Direct Debit, but the 'Date of Withdrawal' section is blank. The same instructions page also states I need to mail 1040-V with the payment included, so I am unsure whether I need to pay now or just wait for the payment to be debited later this month. I want to avoid a situation where I pay now, and then get direct debited again, as my balance due is quite significant.
