curl --request POST \
  --url https://crypto.westminister.tech/api/v1/mpesa/c2b/confirmation \
  --header 'Content-Type: application/json' \
  --data '
{
  "TransactionType": "Pay Bill",
  "TransID": "<string>",
  "TransTime": "20260601120000",
  "TransAmount": "5000.00",
  "BusinessShortCode": "<string>",
  "BillRefNumber": "<string>",
  "InvoiceNumber": "<string>",
  "OrgAccountBalance": "<string>",
  "ThirdPartyTransID": "<string>",
  "MSISDN": "<string>",
  "FirstName": "<string>",
  "MiddleName": "<string>",
  "LastName": "<string>"
}
'

{
  "ResultCode": 0,
  "ResultDesc": "Success"
}