Players without PayPal accounts can now unlock Premium features by phone or SMS. The service is available in 50 countries, the price of the pack varies depending on your local currency and provider (around 2 USD).
Regular packs and subscriptions are still only available with PayPay - however, special new 7-day subscription has been added for phone/SMS payments. This allows lower pricing, since the service only support mini-transactions. Every time you extend your subscription before it ends, you get 3 additional days for free.
If you have any questions, feel free to ask.