Below are some questions that you may ask to start ACH payment:
1. "Does my account support the ACH payment?"
2. "How to enable the ACH payment feature with my account?"
3. "After I generate the ACH file, how can I upload the NACHA ACH file to my bank account to process transactions?"
You can send the following guide link to your bank. This sample may help them understand what feature you are looking for.
Sample: How to upload the ACH file to my account and process transactions
https://www.halfpricesoft.com/direct-deposit-software/ach-payment-upload-file.asp
American Express Centurion Bank, Bank of America, Merrill Lynch, BB&T, BMO Harris Bank, BNY Mellon, Capital One, Citibank N.A., Discover Financial Services, Inc., Fifth Third Bank, First PREMIER Bank, Huntington National Bank, J.P. Morgan, KeyBank, M&T, Merrick Bank Corporation, MetaBank, Navy Federal Credit Union, PNC Bank, Citizens Bank, Regions Financial Corp., State Bank & Trust Company, Silicon Valley Bank, SunTrust, TCF National Bank, TD Bank, N.A., The Bancorp Bank, UMB Bank, U.S. Bank, Wells Fargo and more.
The NACHA Operating Rules require that ACH credits settle in one to two business days and ACH debits settle on the next business day.