充值系统自动识别，20X只支持续费，新充值是10X（不清楚的可以联系客服确认）

充值及售后说明

A. 以下账号请勿充值，否则充值不到账将无法提供售后：

1. 当前会员尚未到期，无法覆盖充值。
2. 账号曾充值过非正价会员，或历史账单中存在0元免费订单、退款记录。

B. CDK有效期说明：

在卡网购买CDK后，请于 5天内使用。超过5天可能失效，且不提供售后。

C. 掉订阅处理：

如出现订阅失效，将扣除实际使用天数后，退还剩余费用。

Recharge and After-Sales Policy

A. Please do not recharge accounts under the following conditions. No after-sales support will be provided if the recharge fails:

1. The current membership is still active and cannot be overwritten.
2. The account has previously had a discounted membership, a $0 promotional order, or a refund record.

B. CDK Validity:

CDKs must be redeemed within 5 days of purchase. CDKs left unused for more than 5 days may become invalid and will not be covered by after-sales support.

C. Subscriptio