Just to update and conclude this thread PayPal finally took my funds off hold. It took them 3 weeks to "complete their investigation". During the course of these 3 weeks, 3 emails were sent to them. I sent 2 and the buyer sent one as well. Now I'm not sure if it was the emails or not that convinced them to release my funds.
What I found most funny was the email they sent me letting me know they released the funds.
"We have lifted the temporary hold on the funds. You now have full access to
those amounts in your account.
We appreciate your cooperation."
This was the message written in the email. To me this suggests they held the funds for the hell of it and there was no real reason to hold them, bastards.
Oh well I'll never use PayPal again and I would not recommend anyone use it. (but you all know that already