Realized 5yrs Later Dell Did Not Include My GPU

I ordered a Dell XPS 9550 back in December of 2015. Lately I have been having some unrelated computer issues and thought updating my GPU drivers may fix my problems. When I purchased my computer, I paid to upgrade to  a NVIDIA GTX960M 2GB DDR; however, when I went into Device Manager it showed integrated Intel Graphics. I reviewed BIOS and Direct X Diagnostics, both showed "Intel HD Graphics 530" as well. 

My first thought was maybe I didn't order the NVIDIA GTX960M 2GB DDR5 and I was mistaken. A quick review of my original purchase order/receipt confirmed that I did in fact order the upgraded GPU. Then I thought maybe there was something wrong with my machine and my GPU just wasn't showing up? But then I found a link in my Dell.Com portal that shows the "original configuration and the system specifications it (my XPS) shipped with." This link gives you a list of everything that was included with your computer when they shipped it and the quantity (example: 8GB Dual Channel DDR4 2133MHz  - Quantity 2).

I review the list what do you know... "NVIDIA GTX960M 2GB DDR5 - Quantity 0". The Configuration list verifies that they did not include the upgraded GPU in my configuration. After some google searching, sending machines out with the wrong GPUs seems to be something Dell is known for to ensure the fulfillment of orders when supplies are low/run out in hopes stupid people, like myself, won't notice.

Albeit it is 5 years later, I have discovered dell did not provide me the upgrades I paid for (possibly intentionally after reading other user's experiences) - do I have any recourse? 

I called Dell Tech Support today and the Tech started off with, "and just so I understand, you're noticing this 5 years later" - Okay, fair, but rude. But then said, "sir, this must be a glitch (referring to the configuration list). You're computer would not turn on without a graphics card". I tried to explain that the processor, Intel Core i7-6700 has an integrated graphics card so NO, it would still run without the upgraded GPU but he wasn't having it. He said to assist me further, I would have to pay $99 for Software Tech Support as this was a software issue... I guess the missing discrete GPU was not an issue to him.

Moral of the story - check your specs when you get a new Dell Laptop. If anyone has any ideas on any course of action I can take, I am all ears. And yes... I know how dumb it is that it took me 5 years to realize I was missing a discrete GPU.