Perfect payment method

No details of sensitive bank or credit card data, and good cost control (because one has only the credit for consuming)

You simply enter only the code in payment options in Microsoft account and the balance is immediately available.
Had the same sample a purchase made with the Lumia 630 (was my first credit card for a smartphone). You had nothing to adjust further, the balance on the Microsoft account was automatically activated as a payment option at the purchase confirmation.

Delivery was very fast (within two working days, the card was there).

After the shops with me indeed sell in the city Nokia smartphones, but unfortunately no credit cards, I'm glad that it is so easy on Amazon.