Enterprise license for DHTMLX Suite not working

Hi,

I am using Enterprise suit for dhtmlx and i am trying to use lic number ######### to register with support team. but it is saying as invalid emailid/lic no. i do not remember email id. Please can you help with this?
Thanks Pravin

Pravin, you can not log in to the support system, because your support period expired on November 25, 2009. Please mail to sales (at) dhtmlx.com to learn how you can renew your support subscription.