public ActionResult SaveCustomerPhone(ulong customerNumber, CustomerPhone phone)
        {
            var result = new ActionResult();

            this.Use(client => { result = client.SaveCustomerPhoneAsync(customerNumber, phone).Result; }
                     );
            return(result);
        }
        public ActionResult SaveCustomerEmail(ulong customerNumber, CustomerEmail email)
        {
            var result = new ActionResult();

            this.Use(client => { result = client.SaveCustomerEmailAsync(customerNumber, email).Result; }
                     );
            return(result);
        }