How to activate Keep2share/K2S.cc Premium Voucher:
1. You will receive a keep2share premium voucher like this: 88888f3e03b7f742b85fdd81bc5612dae829999
2. You should be log in : https://keep2share.cc/login.html
( If you haven't account at Keep2share, you just need to sign up: https://keep2share.cc/auth/register.html )
3. Make sure you are logged in. Then access this link: https://keep2share.cc/auth/code.html
4. Put your voucher code in field and click on "Activate my code"