我可以使用多个liberty vpn优惠券，以保存我的vpn订阅吗？
for most cases, only 1 coupon can be used for each new liberty vpn subscription. the liberty vpn checkout page doesn't usually allow more than 1 code to be applied at the same time.
my testing didn't reveal any security or safety issues using vpnfacile. there's no reason to worry about your data while using this vpn to surf the web, even on public internet connections. but, i have serious concerns about vpnfacile’s lack of clarity on their logging policy.