I got an answer to my questions today around whether you have to take the flight, or just buy it;
Originally Posted by Malev
Dear littlevoices,
Thank you very much for your email addressed to the Malév Service Centre.
With regards to your request, we would like to inform you that the Malev trip
has to be completed in order to participate in the tier match promotion, so
please apply again once the trip is completed in November.
Thank you very much for your kind co-operation.
We look forward to seeing you onboard our Malév flights soon.
Yours sincerely,
Malev Service Center