You have learned a cheap lesson. Forget about it, go to Mitre 10 or Bunnings or Placemakers and buy a decent drill. They have shitloads of "Fathers Day" specials on so the discounts cover the $30 you've lost.
Its just not worth getting bent out of shape over. Leave negative feedback, move on. Karma will bite him in the arse one day.
Oh, and that looks like the single shittiest piece of shit drill I have ever seen. Do yourself a favour, buy a decent Makita. Spend a couple hundy. thank me later.
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