SD Card bought as new but already full of personal pictures from a woman..

I bought a 32Go Extreme SD card for my camera trap but what a surprise this morning, when I tried to watch the videos of the night : the card is full of personal pictures, the trip to London of a young woman.
Then I lost my night watch, and also I really wonder how it is possible : do Sandisk recycle the cards ? are they no supposed to warn the buyer that it is recycled ? and why the card was sent back to Sandisk ?

Any Idea ?

@ChantalVV
Sounds like the purchase of a used or non-authentic drive from an unauthorized reseller.

Have you checked our knowledge base articles?
(Get Support for Your SSDs and Flash Products | SanDisk)

Reference:

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If not, contact SanDisk Technical Support for assistance.
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Not at all’, I bought It from amazon, an authentic SanDisk card.
SanDisk support asked me to sée with amazon. And Amazon reimbursed me, but I still don’t understand how It happened, and It doesn’t cover for thé préjudice that I suffered, the videos that I was not able to record thé other night was important for me…SanDisk must investigate. I Will try to Contact their quality département.