After logging in I am trying to trade on my demo spread betting account, Wall Street and after many EPIC attempts and changing values I keep reciveving the same error:

My Body:

const bodyS = {
    "epic": "IX.D.DOW.IFS.IP",
    "expiry": "-",
    "direction": "BUY",
    "size": 1,
    "orderType": "MARKET",
    "guaranteedStop": true,
    "stopDistance": 30,
    "forceOpen": true,
    "limitDistance": 30,
    "currencyCode": "GBP",
    }

Then I get the deal ID back and a 200 OK

But after that I get this repose from deal/confirms/

{
  date: '2022-07-11T11:14:38.476',
  status: null,
  reason: 'ATTACHED_ORDER_LEVEL_ERROR',
  dealStatus: 'REJECTED',
  epic: 'IX.D.DOW.IFS.IP',
  expiry: null,
  dealReference: 'Z567CEH5GSCTYPT',
  dealId: 'DIAAAAJZUJ9YVAH',
  affectedDeals: [],
  level: null,
  size: null,
  direction: 'BUY',
  stopLevel: null,
  limitLevel: null,
  stopDistance: null,
  limitDistance: null,
  guaranteedStop: false,
  trailingStop: false,
  profit: null,
  profitCurrency: null
}

Help if You Can.