I can provide Zenmate 1 month Premium Account promotion code.
You can activate promo code your account and use it 1 month.
After 1 months If you want to use you need to create a new account and apply new code.
Price $1... 1 month promotion code

doesn't make sense to me cause if you check on the official zenmate.com they don't even offer a lifetime subscription

also i think a vpn company didn't want to have their subscribers have lifetime membership, must be monthly or annually, thanks for the info though, would be glad if someone test it out