SubClient Creation > Settlement, Fees, & Reserve Account optional or required?

Hello,

In creating SubClients with Settlement, Fees, & Reserve Account not passed I'm getting 406 Not Acceptable, whereas the documentation (https://developers.tabapay.com/reference/createsubclient) does not mark them as required.

Are Settlement, Fees, & Reserve Account all required? If not, which ones?
Tabular View does not seem to be working here too btw: https://developers.tabapay.com/reference/createsubclient

Request:

{
    "name": "TabaSlim",
    "tin": "123456789",
    "type": "C-Corp",
    "email": "[email protected]",
    "address": {
        "line1": "605 Ellis Street",
        "city": "Mountain View",
        "state": "CA`",
        "zipcode": "94043",
        "country": "840"
    },
    "phone": {
        "countryCode": "1",
        "number": "4159808222"
    },
    "mcc": "1234"
}

Thanks!