I just bought something...
Protip:
FRONTLIER is a general 25% off discount code for normal lenovo account..
STUDENT is the next best thing at 22% discount (maybe need to open an student/educator account)
If got sign up for lenovopro account, the lenovopro discount for certain model can be stacked with SHOPBACK20 or SHOPBACKAMD discount code to achieve additional discount
E.g
Frontlier Discount code:
Leonvopro account discount + Shopback20 code