Details received. Thank you!
I find the following error in your log files.
array (
0 => 'IPN received on: Wed Jan 16, 2013 11:19:27 am UTC',
1 => 's2Member POST vars verified with a Proxy Key',
2 => 'Unable to verify `$_SERVER["HTTP_HOST"]`. Please check the `custom` value in your Button Code. It MUST start with your domain name.',
),
Upon further inspection, I find that your ccBill Button Shortcode, contains a custom=""
attribute that does not match your WordPress® installation. You are using the www. prefix in your WordPress® installation, but your Shortcode is not using the www. prefix.
The custom=""
attribute in your Shortcode, must match the domain name that you have listed under WordPress® -› Settings -› General -› Site URL (and Home URL). Once you add the www. prefix to your ccBill Button Shortcode, this should fix the issue that you’re having.
See also: Knowledge Base » Don't Mix www, — and Without!
Please let us know if problems persist :-)