How to activate MexaShare Premium Key:
1. You will receive a Mexashare premium key like this: 7999xxdlnd5774la
2. You should be log in : https://mexashare.com/login.html
( If you haven't account at Mexashare, you just need to sign up: https://mexashare.com/?op=registration )
3. Make sure you are logged in. Then access this link: https://mexashare.com/?op=my_account
4. Put your voucher code in field "Apply Premium Key", and click on "Apply"