question

I am facing same error with any test card.

{
    "error": {
        "charge": "CVM2GMWH4HM9E",
        "code": "card_declined",
        "declineCode": "issuer_declined",
        "message": "SERV NOT ALLOWED: Card type cannot be processed on your merchant processing account. Ask for another form of payment. Contact support if you believe this to be incorrect."
    },
    "message": "402 Payment Required"
}

The payload is:

create charge payload
{
        "amount" : 10000.00,
        "currency": "cad",
        "receipt_email": "____<removed>_____",
        "description": "Message from ____<removed>____",
        "source": "clv_1TSTSgJnhQ9d88Sm2sE24viH"
}

I am facing a same issue.

Create Token Output

{
  "id": "clv_1TSTS__<removed>__XfH3FB",
  "object": "token",
  "card": {
    "exp_month": "01",
    "exp_year": "2025",
    "first6": "424242",
    "last4": "4242",
    "brand": "VISA"
  }
}

Charge Payload

{
        "amount" : 10000.00,
        "currency": "cad",
        "receipt_email": "admin@example.com",
        "description": "Message from Term 1",
        "source": "clv_1TSTS__<removed>__XfH3FB"
}

Response

{
    "error": {
        "charge": "6NZ07JSJ3EG64",
        "code": "card_declined",
        "declineCode": "issuer_declined",
        "message": "SERV NOT ALLOWED: Card type cannot be processed on your merchant processing account. Ask for another form of payment. Contact support if you believe this to be incorrect."
    },
    "message": "402 Payment Required"
}