To turn on Automatic Recharge, just login to your account, click on "Manage Your Phone Cards" › "Automatic Recharge" and then click on "Enable Autorecharge" next to each PIN you want enabled.
Discounts from promo codes apply automatically: all Automatic Recharges placed during our general promotion campaigns (aka on all major holidays) are guaranteed to benefit from the discount, so you no longer have to "hunt" for promo codes.
Use your Nobel Points to pay less for your recharges: you can easily configure Automatic Recharge to use your Nobel Points so that you pay less. To do this: login to your account, go to "Manage Your Phone Cards" › "Automatic Recharge" and set how Nobel Points are used for each PIN. Take a look at the screenshot below for details: