After half a year, even if you used surface mail at that time, you still had 30 days to confirm, but it has already passed, so the transaction has already ended.

Now that the deal is over, of course, you have no objection to this baby. Problems should be raised within 14 days (14 days should also be consumer goods).

You can only spend money on tuition. Next time you buy, you'd better identify the authenticity of the goods first.