public RefundResponse Refund(RefundRequest refundRequest, string apiUrl, string secretKey)
{
refundRequest.SetSignature(secretKey);
var refundResponse = RestCall <RefundResponse>(apiUrl, refundRequest, secretKey);
if (refundResponse.Success && !refundResponse.WaitingApproval)
{
refundResponse.ControlSignature(secretKey, refundRequest.HashVersion);
}
return(refundResponse);
}