Trouble Renewing Spamcop/Webmail

My Spamcop/Webmail account is expiring in a few days.  On May 1, I 
mailed a check to the new address of Corporate Email Services, as 
indicated on the renewal page 
(http://mail.spamcop.net/account_renew3.php).

My account expiration date, as indicated on 
http://webmail.spamcop.net/horde/imp/spamcop/preferences.php, has not 
been updated.  I've tried several times to send a message of inquiry to 
support at cesmail.net and spamcop.net, but I have not received any 
response.

Is there any way to get someone to reply with the status of my account?  

I don't know how often they do the updates, whether they've received my 
check, etc.

Thanks.

Ron