How do you activate your moshi membership card?

When you buy a Moshi Monster Time Card, there will be a scratch off place where you will find the code.

Type in the code correctly with no mistakes in the box third from above on the 'Moshi Monsters - Sign In' page, where it says "If you have a secret code, you can enter it here: "

Once you enter that code under your membership on the Moshi Monsters web site, you will have that amount of time as a paid member on your Moshi Monsters membership account.