1. You will receive a premium key like this: GI9OC55D89U50Q57XDKXGAC32GXXXXX
2. You should be log in : https://1fichier.com
( If you haven't account at 1fichier.com , you just need to sign up )
3. Make sure you are logged in. Then access this link: https://1fichier.com/console/abo.pl
4. Paste your Premium key in "VOUCHER (PREMIUM ACTIVATION KEY)" and click OK to proceed.