Amulyam.com — unable to log in as my user id has been disabled by amulyam

My amulyam account is not functioning properly. Despite several efforts, a message is always displayed as "invalid user". How it can be possible. I have mailed you several times but you didn't reply to any one of them. Due to this reason i want to unsubscribe my amulyam account forever. With the same e-mail id my all correspondences take place
Thanks

Faithfully yours
Vna. [protected]@gmail.com