Is there anyway of sharing membership, as i only have one membership, if another member is not using their membership on that game?

I no its cheeky, but is this a wise idea or not.

You can add a felow member or members to your own membership and vice versa. That way if the other member/members is not using their account for certain games , you can get their allocation .

WHat clubber said basically.

If you log in to your account you should see a family and friends section. To add someone you need their surname, postcode and membership number.

Once they are added you can order tickets using their membership as well as your own and it means you will get seats together in thee ground

However remember that the person whose membership you are using is entirely responsible for the behaviour of the person using their membership so never let your membership be used by someone you don't know or trust 100% as you risk havingit taken away.