Help! Just an art student here who seems to have bought used Hard drives

WD External Drives External Drives for PC
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Hi guys,
I just bought two 1 TB WD hard drives online from a trusted seller for my work but as I am just an art student, i don’t really know the computer geeky stuff that you guys know of and i need your help to figure it out what to do.
I had a feeling that both of them are used drives as they had NetApp labels on it and they’re both 2009 models, although the seller gave 1 year warranty and he assured me that these weren’t used products, i went on google and did some research about how to find out if the hard drives are used. i went ahead and downloaded the WD data lifeguard diagnostic tool but i just couldn’t make sense of it. So i read some more blog posts and forums and downloaded Hard Disk Sentinel and ran that software on all of my drives.
Here are the results for WD software
Drive 1 Capture
Drive 22
should I open dispute with the seller and return these or keep them?

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and here are the hard drive sentinel results

WD1
WD11022×625 88.2 KB

WD3
WD31019×627 91.5 KB

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and the following is my internel hard drives result in my laptop

Original%20hard%20drive
Original%20hard%20drive1033×630 105 KB