Special savings: Get 50% off any one album of your choice. Get and redeem your offer by midnight 8th September 2016. Your discount will be applied at checkout.
Must be redeemed on Google Play from compatible Internet-connected devices using a Google account. Limit 1 per user. Age restrictions apply. Valid in AU, BR, CA, DE, FR, GB, JP, MX, RU and US. Non-transferable. No cash value. Cannot be used in conjunction with other offers or discounts. See Google Play Terms & Conditions
Apparently on albums up to £15. I just bought a £9.99 album for £4.99