Meant are the gold and silver tickets for the "Nature Season" or whatever the season is called.
You can save money, because buying the tickets for your self is more expensive than buying the ticket for a friend.
The Gold ticket costs about $45 for your own ticket and $31 for a friend.
The Silver ticket costs about $16 for your own ticket and $10 for a friend
Every month one player starts the chain with buying the tickets. After that he sends the tickets to the next person in the chain.
The players in the middle receive their tickets and only have to buy the tickets for a friend.
Tha last one in the chain, doesn't have to spend money in that month. He must only receive the tickets.

The player that buys the first tickets must spend $102.
The players in the middle must spend $41.
The last one must spend $0.
If the chain consists of 4 persons, every player has to spend: 1x $102 + 2x $41 + 1x $0 = $184.
If you would buy the tickets for your self every month: 4x $61 = $244.

At the moment the following players are part of the ticket chain, which start in February 2026: Chris, Nigel, Sten., Zhenwu Wang