1. Most often "pass" cards of large banks with head offices (or branches) abroad ("Raiffeisen", "CITI", "Alfa-Bank"). Many failures when paying with Sberbank and Corn cards.
2. Gold or ordinary, VISA or MasterCard, credit or debit, with or without bonuses, there is no difference.
3. Billing address indicates any real (intermediary, your Russian, mix of the previous two)
4. If the refusal to the e-mail did not come within 48 hours (on weekdays), then your order passed with a 95% probability.
5. If the order status has changed from the "Processing item" to the "Preparing for shipment", then it will be delivered to you with a 95% probability.
6. At the very beginning of the order on your card can block 1 ruble / dollar, for verification. The full amount will be written off after changing the "Processing Item" to "Preparing for Shipment". But this is not a 100% guarantee that the phone will be delivered. There were cases when the refusal came within three days and the money was immediately returned in full.
7. For payment on your card there should be an amount approximately 7% more from the required one.

What does Apple do when restoring devices?
1. Factory inspection.
2. Replaces the case and screen.
3. Assigns a new serial number.
4. Install the latest version of the operating iOS.
5. Packed in a new box with new accessories: headphones and charger.
6. Gives new warranty for 12 months.
Feedback on the purchase of such a device.
Another tip.