If there is any error in the sending of an ACH transaction, how long does it take for the money to return to the sender's account?

If there is any error in the sending of an ACH transaction, how long does it take for the money to return to the sender's account?

The return money will take up to 3 to 4 days. If it takes longer please contact Customer at Support at support@monkeymoneyapp.com or Whatsapp : +1 (267) 573-1803