HP EliteDesk Desktop w/24" LCD Monitor, Intel i5 Core Gen 8, 16GB, 1TB SSD, DVD, Black, 600G4

I purchased this through Walmart. The keyboard is supposed to be backlit and thus would help the user read or identify the proper key when necessary. However, the lights are not working on the keyboard, and Walmart will not exchange just the keyboard. I would have to return the entire computer (CPU, monitor, keyboard, mouse) and get a refund and start the process of acquiring a new computer all over, when all I want is to just replace the keyboard. As one can see from the photo provided (below), the keyboard does not light up, but the number lock is one, so it receives power (and types). The keyboard should light up like the mouse situated to the right of the keyboard.

Arrived on time, IT guy comes to set it up and worked several hours trying with no success even after spending an extra $121 on adapters, plug ins etc. Back it went plus it took a couple of weeks for the company to apply the refund to my credit card.