Dell used refurbished parts and did not notify me?

Please note that if your Dell computer runs into technical difficulties such that it needs to be sent to the Dell Repair Depot, they will fix it with REFURBISHED parts and this will significantly reduce the warranty to 90 days. 

My computer was recently overheating, crashing, and the battery was not lasting long. I sent the computer to be fixed and paid for what I thought was a new battery. It cost the same amount as their advertised new batteries, the information that I consented to for the replacement had no indication that it was refurbished, and I thought all is well. NOPE! 100 days later, my computer is experiencing the same issues and to my absolute surprise was informed I need a new battery. "How? I just replaced it..." I thought. I then looked online and said, "Okay, your batteries are advertising a 1-year warranty, so you will fix this free of charge". NOPE! Because they (unknowingly to me) replaced it with a REFURBISHED battery it is thus only covered for 90 days and I will have to pay again out of pocket. 

After going back and fourth over several days spending hours running the same diagnostics and speaking to all levels of Dell support workers and management, no one has been able to justify to me why my battery was replaced with a refurbished part instead of a new one which I thought I was paying for. No one will replace the battery free of cost or reimburse me for the misinformation either. 

I also feel I should mention that after sending my computer in for repairs, it came back worse than before (the trackpad was not working), so I had already had to send it in once before. The scrolling is still not 100%. 

Not happy with their system. Feel completely manipulated. Thanks for reading.

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