private static void TestInvoices(StripePayment payment)
{
List<StripeInvoice> invoices = payment.GetInvoices(10, 10);
StripeInvoice inv = payment.GetInvoice(invoices[0].Id);
StripeCustomer cust = payment.CreateCustomer(new StripeCustomerInfo());
StripeSubscription sub = payment.Subscribe(cust.Id, new StripeSubscriptionInfo { Card = GetCC() });
StripeInvoice inv2 = payment.GetUpcomingInvoice(cust.Id);
payment.Unsubscribe(cust.Id, true);
payment.DeleteCustomer(cust.Id);
}