There are 3 packages through which you can purchase LEOcoins as they are not yet available on exchanges except LEOxchange. So in order to grab LEOcoins, you should be the member of LEO family.
Packages Details :
Bronze (£150) -> 80 LeoCoins
Silver(£800) ->320 LeoCoins
Gold(£1500) -> 960 LeoCoins
Also, you'll need a referral link to join LEO.
If you want to join I can share my referral link with you.