Found 23rd Nov 2017
£0.86/month for 5 years at PureVPN for the next week. This is a lifetime price which means it renews at the same price every 5 years for life. £0.86/month seems like a good deal.
If you don't want to commit that long, it's also £5.97/month for 6-months
PureVPN has good reviews and they also have the 3rd spot among the best VPN Providers on PCMag