I've set up SNS notifications and while bounces seem to be registered, complaints are not. I grepped the following out of my error log:
2013/05/18 15:16:49 [error] 12781#0: *117244 FastCGI sent in stderr: "PHP message: PHP Notice: Undefined property: stdClass::$complaint in /<redacted>/public_html/includes/campaigns/complaints.php on line 51
Any help would be greatly appreciated!