Hacking Airline Lounges for Free Meals

I think this is a great hack:

A man bought a first-class ticket and used it to have free meals and drinks at the airport's VIP lounge almost every day for nearly a year, Kwong Wah Yit Poh reported. The itinerary for the ticket was found to have been changed more than 300 times within a year, and the owner of the ticket used it to enjoy the facilities at the airport's VIP lounge in Xi'an in Shaanxi, China.
[...]
When the ticket's validity was almost up, the passenger cancelled it for a refund.

It's such a weird occurrence that I'm not even sure it's worth bothering to defend against.