google adsense is notorious for not responding for publisher's queries. do not expect any response from adsense support team.
Only thing i expect now is that the unpaid amount gets back credited and come with next payment due may 2010 ? wonder if someone suggested "Do not pay some random publishers in Google Adsense Product Ideas they asked some time back"
If the check is not delivered that's what Google does by default credit back the publisher's account. I trust Google I am sure the check will reach me sometime..