public void UpdatePaymentToken()
        {
            var paymentTokenCreateModel    = TestHelper.GetPaymentTokenCreateModel(TestHelper.RandomData.Email);
            var createPaymentTokenResponse = CheckoutClient.TokenService.CreatePaymentToken(paymentTokenCreateModel);

            var paymentTokenUpdateModel = TestHelper.GetPaymentTokenUpdateModel();
            var response = CheckoutClient.TokenService.UpdatePaymentToken(createPaymentTokenResponse.Model.Id, paymentTokenUpdateModel);

            response.Should().NotBeNull();
            response.HttpStatusCode.Should().Be(HttpStatusCode.OK);
            response.Model.Message.ShouldBeEquivalentTo("ok");
        }