In other words, it was an extremely, extremely low-probability, accidental discovery.
The chances of collision is so low that it is impossible only
if you created the seed phrase yourself using a strong random number generator. But this is not the case here. You say you have found these words on the internet (on Facebook) and you claim it is a scam attempt.
The chances of it is actually very high to see the words used in the same order they were posted to generate a wallet with transaction history (the "scammer" did that intentionally).