Paid for product never got a key

Paid for product never got a key. Key lookup says no account exists. I have a receipt from PayPal. How do I contact these people for a download link and key???

https://support.piriform.com/hc/en-us/requests/new

invoice 188896375 paid for. Can not download.

i am facing also problem while activating my recuva.

[Link to illegal piracy site deleted]

2 hours ago, hulkking said:
<div class="ipsQuote_contents ipsClearfix" data-gramm="false">
	<p>
		i am facing also problem while activating my recuva.
	</p>

	<p>
		<strong>[Link to illegal piracy site deleted]</strong>
	</p>
</div>

If you can't find the serial key that you purchased then please contact CCleaner/Piriform support. Don't try to bootleg a key instead. It probably won't end well.