Direct Debit Info

I filed yesterday and selected the option for my Federal Payment to be direct debited on 3/15 from my bank. 

After the tax forms where submitted and accepted this morning, I printed my return but I don't see where it confirms that it will be debit from account.  So how do I know confirm that it will be taken from my account?

 

Also my taxes printed with 4 estimated tax payment vouchers, which I don't know what those are for, my taxes are withheld from my employer