Cant find ACH feature

Questions
3

Hello Bryan, I am trying to make payment through ACH api for that first, I created an Invoice, Customer and Order, but I couldn’t get an email to process it for my ACH payment further. Is there anything that I am missing to get an email
.
INVOICE

{
      "id": "inv:0-XXXXXXX_-XXXXXXqEPcF",
      "version": 0,
      "location_id": "XXXXXX",
      "order_id": "XXXX",
      "payment_requests": [
        {
          "uid": "af9e0822-f147-4717-9851-a6107068dbd5",
          "request_type": "BALANCE",
          "due_date": "2021-03-10",
          "tipping_enabled": true,
          "computed_amount_money": {
            "amount": 0,
            "currency": "USD"
          },
          "total_completed_amount_money": {
            "amount": 0,
            "currency": "USD"
          },
          "automatic_payment_source": "NONE"
        }
      ],
      "invoice_number": "2549002",
      "title": "Haziq",
      "scheduled_at": "2021-03-10T08:00:00Z",
      "status": "DRAFT",
      "timezone": "UTC",
      "created_at": "2021-06-17T06:13:28Z",
      "updated_at": "2021-06-17T06:13:28Z",
      "accepted_payment_methods": {
        "card": true,
        "square_gift_card": false,
        "bank_account": true
      },
      "delivery_method": "EMAIL"
    },

_Customer

{
      "id": "XXXXXXX",
      "created_at": "2021-06-17T06:34:59.511Z",
      "updated_at": "2021-06-17T06:35:00Z",
      "given_name": "Haziq",
      "family_name": "Khatri",
      "nickname": "Khatri",
      "email_address": "[email protected]",
      "phone_number": "03548148514",
      "note": "Sharah-e-Faisal",
      "company_name": "Objects",
      "preferences": {
        "email_unsubscribed": false
      },
      "creation_source": "THIRD_PARTY",
      "birthday": "1994-05-04T00:00:00-00:00",
      "segment_ids": [
        "ML9G4D8M7N8EF.REACHABLE"
      ],
      "version": 0
    }
  ]