To cancel your subscription click the VPN Administration button on the left hand menu of https://my.liquidvpn.com/clientarea.php 
Click VPN Administration 
Click the service you want to cancel
Click Request Cancellation
Choose to cancel immediately (takes up to 24 hours to process) or at the end of billing period
Either option will stop your subscription before being billed again.

Also Read

Can I use LiquidVPN instead of my ISP?
No, a VPN works in conjunction with your internet connection. It cannot be used to replace your...
Am I completely anonymous with LiquidVPN?
LiquidVPN is a privacy service. It is important to note that by design a VPN does not provide an...
Do you offer TCP and UDP OpenVPN connections?
Yes, and we provide several ports for each type of network topology we offer.
What if I cant find the answer I am looking for?
The first place to look for answers is our knowledgebase. Use the search feature to look for an...
What kind of encryption does LiquidVPN use?
LiquidVPN implements the highest level of encryption natively supported by each of our VPN...