James' in-class spending is not enough to maintain a Gold membership and he is downgraded
to Silver membership.
With the downgrade to Silver Membership, IN CLASS SPENDING is reset to zero.
Membership Period: 31st Dec. 2016 to 31st Dec. 2017
Balance: 43,000 reward points (11,000 - 30th March 2017, 10,000 - 30th Dec. 2017,
22,000 – 29th Sep. 2018)