How to activate Oxycloud Premium Voucher:

1. Login to your Oxycloud.com account : https://oxycloud.com/login.html (You should register your own if you dont have account yet, https://oxycloud.com/register.html )

 

2. Go to that link: https://oxycloud.com/upgrade

 

3. Look at "Voucher" field.

 

4. Put your premium key to that field and "Apply" it.