From Marti and Me Club in the mail _ NL

You can start the club at any date. By ordering your club here, you register as a member. You do not pay now: you will receive an invoice. Your membership will start with the current issue.The price is for 3 months.

You can find information on club membership above. 

Shipping dates 2016: 2 May, 30 June and 1 August 2016