[Lynx-lynx]

Has anyone else noticed this promo:

Give your friends 20% off their first eBook and earn 50% off your next one with their purchase.

Legal info:
Every customer who refers someone who makes their first eBook purchase on Kobo will receive a 50% discount code. Discount code will be emailed to the address registered at Kobo, and may only be used once for 50% off a single eBook purchase.

Discount code is applicable on select eBook titles only. Discount will be applied at checkout.

Offer valid for customers in Canada, United States, United Kingdom, Australia, and New Zealand. Offer valid from December 12, 2014 at 12:00 AM EST through January 31st, 2015 at 11:59 PM EST.

remainder of legal:

Spoiler:

This offer is not valid in conjunction with any other offer or promotion and cannot be used to adjust amount paid on previous purchases. Promotional code must be entered at time of purchase to qualify for this discount. Discounts cannot be applied nor the discount value refunded once a purchase is complete. Rakuten Kobo Inc. reserves the right to change or cancel this offer at any time without notice.

I saw it on the UK site but it may be on other sites. It came up after I purchased a book - on the 'Thanks for your purchase page'