I was just looking for a relatively low usage VPN for an additional device I bought and realised that the Windscribe post
I made a few months ago is still good to use, so posting it again in the hope that someone would be able to benefit from it as well.
20 GB free per month for lifetime on VPN Windscribe with coupon code EXPAND20
You enter the code at registration, you would have to confirm the e-mail address to get the 20GB a month allowance.
Good thing is it works on existing accounts as well, as long as your allowance currently is less then 20GB
Hope it helps someone.