They might be a previous post about this, but they upped the discounts today.
I walked past the Co-Op Bookshop at my uni by chance last week and managed to score a Satechi Wireless Keyboard, MBP Charger and a few Lamy pens/refills for 50 - 60% off.
I guess, just try your luck and see what's in stock?
Too late to get memberships refunded I guess.