Jag lusläste informationen på Aegeans hemsida och kvalificeringsperioden återställs det datum man blir uppgraderad:
"To reach the Gold Tier, all you need to do is fly Aegean or Olympic Air at least four times and earn 24,000 Tier Miles within 12 months or collect a total 48,000 Tier Miles, regardless of which airline you choose to fly with. Whichever you do first will get you there. To retain your Gold Tier, you have a fixed 12-month period from the date of your upgrade or renewal of your tier to collect 12,000 Tier Miles, including 4 flights with Aegean and/or Olympic Air, or collect a total of 24,000 Tier Miles, regardless of which airline you choose to fly with."
Så, de efterföljande resorna går inte till spillo.