5. Plans and billing
5.1 Plans: what is included and how to choose
5.2 Prices in dollars, payment in rubles
5.3 How to pay for a subscription
5.4 Promo codes and period discounts
5.5 Auto-renewal: how to turn it on and off
5.6 Bank cards: add, change, delete
5.7 Changing your plan
5.8 Internal balance
5.9 Payment statuses and what to do if payment fails
5.10 Subscription end and access without payment
5.11 Refunds and canceling your subscription
5.12 Receipts and payment documents
Plans, payment, auto-renewal, plan changes and refunds