I get an error when I click on your photo so can't zoom in, but those look suspiciously like something in the Solanum (nightshade) family, possibly Black nightshade (Solanum nigrum.) Definitely not goji. Where did you buy the seeds from?
A trowel in the hand is worth a thousand lost under a bush.
They don't look like Goji berries and you should be thankful for that, Goji Berries are incredibly invasive, you'll have a job getting rid of them if you plant them in the garden!
I wouldn't call them invasive but they are extremely hard to get rid of and they don't produce fruit. Or not in my experience, anyway. I wouldn't bother with them. Get your money back and buy a chilean guava plant or some mara de bois strawberries instead
Gardening on the edge of Exmoor, in Devon
“It's still magic even if you know how it's done.”
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It was a packet of Suttons seeds.
“It's still magic even if you know how it's done.”