About this offer
Currently, you can practically get a 2-year VPN subscription for free. All you need to do is buy it through Quidco to get 100% cashback. In my case, the cashback tracked within about half an hour, and the cashback amount differs by only a few pence from what I paid.
As for the VPN itself, it works much better than it used to. I also currently have NordVPN, and I must say PIA has better speeds.
