curl --request POST \
  --url https://api.yapily.com/variable-recurring-payments/funds-confirmation \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: application/json;charset=UTF-8' \
  --header 'consent: <consent>' \
  --data '
{
  "reference": "Own Account Commercial",
  "paymentAmount": {
    "amount": 10,
    "currency": "GBP"
  }
}
'

{
  "meta": {
    "tracingId": "0f14e900011b445fa6b6c2c4272d7321"
  },
  "data": {
    "id": "a9582f8e-08be-4cca-9f01-1ad3be96532d",
    "fundsAvailable": {
      "fundsAvailable": true,
      "fundsAvailableAt": "2021-06-08T10:59:35.138Z"
    },
    "reference": "Own Account Commercial",
    "paymentAmount": {
      "amount": 10,
      "currency": "GBP"
    }
  }
}