After you file

Okay, now I'm confused again.  I went ahead and efiled my amended federal taxes with Turbotax and after it was "successfully" transmitted, I was directed to a "Payment Voucher" Form 1040 V.  Per Turbotax, it says I need to mail the 1040V in with a check for the amended tax amount.  Since I originally authorized IRS to make a tax due withdrawal from my bank, it seems to me that if I mail a check, they might end up withdrawing AND accepting a separate check.  I'm not sure what to do now.

 

Thanks in advance for any thoughts or ideas.