ACH debit, ACH credit and eCheck are not interchangeable
ACH credits push money to an account; ACH debits pull authorised funds from the payer’s account. eCheck is a commercial term that can describe ACH-based collection, but you should confirm the actual network, transaction type and provider agreement. Receiving USD account details does not automatically grant debit-origination access.
Explain whether you collect consumer subscriptions, business invoices or another payment type. The sponsor bank and processor assess the originator, authorisation method and expected exposure. A card-processing relationship is useful background, not a substitute for ACH approval.