我可以使用多个ovpn.com优惠券在我的vpn订阅中保存更多吗？
for most cases, only 1 coupon can be used for each new ovpn.com subscription. the ovpn.com checkout page doesn't usually allow more than 1 code to be applied at the same time.
通常，le vpn优惠券适用于新用户，不能应用于现有订阅。