"Please don't buy any LISK in this forum. The owner can reset the passphrases by simply open a ticket on our support center and provide us with his email address and exchange ID. We check the data and if all is good, we will reset the passphrases."

Someone offered to sell me LISK. Does the above (from the OP) mean if I buy them he can reset the passphrase and then I won't have them? Is there a way to buy LISK from someone yet?