[Lynx-lynx]

For info here's a copy of the email that 'Christopher' (on Behalf of Team Kobo) sends from the email address contest@kobo.com.

Note the bold emphasis is mine.

Spoiler:

Hello!

Thanks so much for reaching out to us! Congratulations on being the winner of one of our Aura H2O devices, and apologies for not being able to contact you sooner. Due to a small glitch in accessing our database I was prevented from reaching out earlier and was working on this issue when you contacted us. Sincere apologies for any confusion this may have caused.

Please reply to this message with your full shipping address (including a daytime phone number), and an answer to the below skill testing question so we can prepare to ship your prize.

Skill Testing Question: (42 + 3) – (5 x 3) = ________

Thanks again for reaching out and your patience, and congratulations again.

Best,
Christopher (on Behalf of Team Kobo)

The sentence 'Due to a small glitch in accessing our database I was prevented from reaching out earlier and was working on this issue when you contacted us.' seems to get sent to everyone who contacts re their device prize win - and has been the stock standard sentence used for a long time (maybe over 1 year?).

And here's the skills test that all winners seem to be given:
Skill Testing Question: (42 + 3) – (5 x 3) = ________