I&#x27;d suggest an escrow system but their coupon system seems to make this problem nearly unfixable:<p><pre><code>  It said no money had changed hands from the sale of
  Mr Hunt&#x27;s course &quot;as the fraudulent instructor had
  created coupon codes to allow students free access
  to the course&quot;.
</code></pre>
I&#x27;m guessing those coupon codes were sold on some other platform (or perhaps used as bait to get traffic that was monetized in some other way) allowing the fraudster to profit directly without money ever flowing through Udemy&#x27;s hands.