It would have the same numbers if it were the original packaging. But that doesn’t mean you are getting scammed. It just means they used a different this than it came in.

Some people buy/sell phones in bulk. Phone packaging was made to fit the phone it was produced for. So it makes sense to ship it in the same packaging if reselling. You can buy the retail boxes in bulk for this reason.

As long as what was advertised was what you got, I wouldn’t be worried.