OpenVPN config files are updated and UK servers are using different ports. You can download updated OpenVPN config files from the following link:
If you are interested in using OpenVPN, find your desired OS guide from the following pages:
OpenVPN is an open-source software application that implements virtual private network (VPN) techniques for creating secure point-to-point or site-to-site connections in routed or bridged configurations and remote access facilities. Read more here.