there is a requirement for qantas to notify an impending points expiration. so it is not going 'above and beyond' to send an email.
the relevant terms and conditions are outlined below.
however... people can forget things. we didn't forget to fly qantas in the first place to earn to 400,000 points, but if we forget to spend $1 in 18 months we lose a notional value of $16000 (first class return to London). if we build up loyalty earning the points, why not return it?
doesn't seem very fair?
some airlines will allow you to reactive expired miles on payment of a fee.
my bolding for emphasis. now... if the email address was changed without the account holder's permission then 9.2.2(c) has not been complied with.
9.2 Qantas points validity
9.2.1 Except as otherwise provided in these Terms and Conditions, Points will not expire as long as the Member remains an Active Member.
9.2.2 All Points held in a Qantas Frequent Flyer account of a non-Active Member will expire at midnight Sydney, Australia time at the end of the 18th consecutive month for which the Member has not earned Points or Status Credits or redeemed Points (excluding any transfer of Points to or from an Eligible Family Member). For this purpose, Points earned in relation to Eligible Flights are deemed to be earned on the date the Eligible Flight was taken. Within 60 days of the Points expiration date, Qantas will notify Members of the number of Points that are about to expire and the expiration date as follows:
(a) A warning is displayed to Members within the Points Balance section of Your Summary on qantas.com;
(b) Members who continue to receive paper activity statements, will receive an activity statement which includes a notification that Points are about to expire; and
(c) Members who have opted to receive communications online and via email, will receive a notification within their monthly electronic newsletter.