public static bool UpdateFromAPIMerchant(this Database.Merchant dbmerchant, Merchant merchant)
        {
            bool updated = false;

            if (merchant.Enabled != null && dbmerchant.Enabled != merchant.Enabled)
            {
                dbmerchant.Enabled = (bool) merchant.Enabled;
                updated = true;
            }

            if (!string.IsNullOrEmpty(merchant.Name) && dbmerchant.Name != merchant.Name)
            {
                dbmerchant.Name = merchant.Name;
                updated = true;
            }

            if (!string.IsNullOrEmpty(merchant.Street) && dbmerchant.Street != merchant.Street)
            {
                dbmerchant.Street = merchant.Street;
                updated = true;
            }

            if (!string.IsNullOrEmpty(merchant.City) && dbmerchant.City != merchant.City)
            {
                dbmerchant.City = merchant.City;
                updated = true;
            }

            if (!string.IsNullOrEmpty(merchant.Country) && dbmerchant.Country != merchant.Country)
            {
                dbmerchant.Country = merchant.Country;
                updated = true;
            }

            if (!string.IsNullOrEmpty(merchant.PostalCode) && dbmerchant.PostalCode != merchant.PostalCode)
            {
                merchant.ValidatePostalCode();
                dbmerchant.PostalCode = merchant.PostalCode;
                updated = true;
            }

            if (!string.IsNullOrEmpty(merchant.TelephoneNumber) &&
                dbmerchant.TelephoneNumber != merchant.TelephoneNumber)
            {
                merchant.ValidateTelephoneNumber();
                dbmerchant.TelephoneNumber = merchant.TelephoneNumber;
                updated = true;
            }

            if (!string.IsNullOrEmpty(merchant.MasterCardAssignedID) &&
                dbmerchant.MasterCardAssignedId != merchant.MasterCardAssignedID)
            {
                dbmerchant.MasterCardAssignedId = merchant.MasterCardAssignedID;
                updated = true;
            }

            //update merchant fields relating to American Express (AMEX)
            if (merchant.AMEX != null)
            {
                if (dbmerchant.AMEX == null)
                {
                    dbmerchant.AMEX = new Database.Merchant.AMEXFields {Created = DateTime.Now.ToUniversalTime()};
                    merchant.ValidateAMEXFields();
                }

                if (dbmerchant.AMEX.Enabled != merchant.AMEX.Enabled)
                {
                    dbmerchant.AMEX.Enabled = merchant.AMEX.Enabled;
                    updated = true;
                }

                if (dbmerchant.AMEX.TransactionSourceType != merchant.AMEX.TransactionSourceType)
                {
                    dbmerchant.AMEX.TransactionSourceType = merchant.AMEX.TransactionSourceType;
                    updated = true;
                }

                if (!string.IsNullOrEmpty(merchant.AMEX.AuthorizedSignerFirstName) && dbmerchant.AMEX.AuthorizedSignerFirstName != merchant.AMEX.AuthorizedSignerFirstName)
                {
                    dbmerchant.AMEX.AuthorizedSignerFirstName = merchant.AMEX.AuthorizedSignerFirstName;
                    updated = true;
                }

                if (!string.IsNullOrEmpty(merchant.AMEX.AuthorizedSignerLastName) && dbmerchant.AMEX.AuthorizedSignerLastName != merchant.AMEX.AuthorizedSignerLastName)
                {
                    dbmerchant.AMEX.AuthorizedSignerLastName = merchant.AMEX.AuthorizedSignerLastName;
                    updated = true;
                }

                if (!string.IsNullOrEmpty(merchant.AMEX.AuthorizedSignerTitle) && dbmerchant.AMEX.AuthorizedSignerTitle != merchant.AMEX.AuthorizedSignerTitle)
                {
                    dbmerchant.AMEX.AuthorizedSignerTitle = merchant.AMEX.AuthorizedSignerTitle;
                    updated = true;
                }

                if (!string.IsNullOrEmpty(merchant.AMEX.SellerEmailAddress) && dbmerchant.AMEX.SellerEmailAddress != merchant.AMEX.SellerEmailAddress)
                {
                    dbmerchant.AMEX.SellerEmailAddress = merchant.AMEX.SellerEmailAddress;
                    updated = true;
                }

                if (dbmerchant.AMEX.AuthorizedSignerDateOfBirth != merchant.AMEX.AuthorizedSignerDateOfBirth)
                {
                    dbmerchant.AMEX.AuthorizedSignerDateOfBirth = merchant.AMEX.AuthorizedSignerDateOfBirth;
                    updated = true;
                }

                if (dbmerchant.AMEX.SEDetailStatusCode != (Database.Merchant.SEDetailStatusCode) merchant.AMEX.SEDetailStatusCode)
                {
                    dbmerchant.AMEX.SEDetailStatusCode = (Database.Merchant.SEDetailStatusCode) merchant.AMEX.SEDetailStatusCode;
                    updated = true;
                }
            }

            if (updated)
            {
                dbmerchant.LastUpdated = DateTime.Now.ToUniversalTime();
            }

            return updated;
        }