I fly once a month in J between Australia and Japan so not sure if that's considered more than a regular frequent flyer....perhaps they saw me splitting my flights between CX, QF and JL?
For those that can read Japanese, these are the additional benefits on top of diamond status.
- Waiver of admin fees associated with issuing tickets or changes
- Guaranteed booking of domestic flights between HND-ITM, HND-CTS, HND-FUK
- 40000 yen worth of JAL coupons