First you have to cancel you current subscription, to do that follow these steps:
1. Sign in to your Jivaro.com profile
2. Click 'Settings > Billing > Status'
3. Click Click 'Turn Off Automatic Rebilling'
When your subscription has run out, you can redeem your voucher code.
To redeem your code simply follow these steps:
- Go to http://www.jivaro.com and sign in/sign up
- Go to your profile ´Settings´
- Click ´Billing‘ and ´Redeem Code‘
- Input your voucher code and click ‚Redeem‘
Your account now has been upgraded to premium.