Cyberpowerpc Willis L. Cyberpowerpc aold me a broken pc and refuse to refund me City of industry California

I bought a PC and was sent one with broken components as well as others not installed/seated completely. When i called in, i was connected with "Willis L." He promptly told me there was nothing that coild be done and I would have to eat this loss. Mind you the pc was 2800 USD. I then started a complaint with the BBB and IC3 resulting in me getting an exchange, however, i did have to pay am additional 60 dollars in shippong. They then sent me a replacement card of leaser value. It was not the same component or even the same brand as what i had sent them. Regardless, the replacement was also broken. I contacted them again and asked for a refund, at this point i doubt they do this right no matter how mamy times they tried, they told me its past the 30 day window and id have to pay 15% on a 2800 pc for a restocking fee. I haven't used this pc yet, and 6 of the 7 weeks it has been here it has had parts being shippwd back and forth. I feel like I am being bullied and targeted deliberately. I will go further to assume they do this often and is how they maintain sales at all. The customer service couldn't be worse. Everything about this is shady. This restocking fee thing that THEY have drawn out has prevented me from refunding this broken thing. 

Now I'm stuck with a 2800 dollar hole in my savings and no pc. I got a family and with inflation being what it is this is a unaffordable loss. How are my kids going to do school work without a pc?