But in the past, with other PP cases, it was undeniably in their interest to respond. If they didn't respond, it's an automatic refund - their money lost. In many of these instances they're not gaining anything by not answering emails relating to PP cases. Because of that I really think it's all down to poor/limited customer service simply not keeping on top of emails/returns/etc, not some calculated plan to try to rip people off or whatever.
And my email I sent last Thursday night about returning the figures to them after getting my Paypal refund has still gone unanswered, a full week later