Apple increasing trade-in values for iPhone, iPad, Apple Watch and Mac until May 31

Apple has launched a limited time offer that increases trade-in values for iPhone, iPad, Apple Watch and Mac for customers in select geographies, offering from £10 to £50 extra for some iPhone and iPad models and between £10 to £30 extra for select Macs and Apple Watches.
“More credit. More savings. Get the device you want with Apple Trade In,” says Apple in a new marketing email sent to customers today. “For a limited time, trade in an eligible Apple device and get more credit towards the purchase of a new one. Benefit from incredible savings on a device you’ll love.”
The promotion runs from May 11 through May 31. The Apple Post has been able to verify that the offer is available to customers in the United Kingdom, with others taking to Twitter to share that the promotion is also available to customers in Japan and Germany.
The offer is open to users of the iPhone 6s and newer, iPad Air (1st generation) and newer, Apple Watch Series 2 and newer, and eligible MacBook Pro (Late 2013) or newer.