I just tried it and the discount code worked. (I tried it in upper case and lower case, both worked. The code is not case sensitive.)
Try it again. If it doesn’t work, it may be because Banggood has mistakenly identified you as a dealer. Banggood’s ordering system seems to randomly do that to people. You can contact Customer Service and have them fix your status or you can re-register under a different party.
Convoy S2+ with Nichia 276A 365nm led, temporarily $18.49 at Gearbest. I bought one (I need the led for some testing ) and managed to use $4 worth of GB-points on it as well :-) http://www.gearbest.com/led-flashlights/pp_277704.html
Aukey 20,000mAh powerbank for $23.99 I reviewed this vs the xiaomi 20,000, the xiaomi being about ~2% higher in efficiency, but the aukey can charge with both usb and lightning port, and is much cheaper.
Ikea LADDA batteries $1.99/pack at Canadian stores, not the new model, the old version, on clearance. AA and AAA. Both come in 4 packs.
YMMV, i assume all locations would be clearing them out, but not guaranteed, and some may have emptied their inventory already.