subscription or one-time payment?

Purchase a subscription 自动续费
Your account will be automatically renewed at the end of the current term. You can cancel any time with a click. You can pay with Visa, MasterCard, American Express, Discover, JCB, and UnionPay (Yinlian 银联)credit cards or paypal.

Make a one-time purchase 一次性购买，续费需再次购买
Your account will NOT be automatically renewed at the end of the current term. You will need to buy again at renewal. You can pay with credit cards, paypal, alipay (Zhifubao 支付宝), Giropay, iDEAL, Sofort, WebMoney.