What do you mean by "...loss of my log in details for my demo , ..." ?. Are you saying that your demo is expired ? If so, contact your broker and tell them not to expire your demo. If your demo is loosing money, then again, contact your broker to add demo money to your demo - yes they can do that :).
I think if you create new demo for existing signal, it will considered as violation of section II of signal rules. The signal rules did not mentioning a new account for existing signal, but it saying that signal provider should maintain a "failure free" to its signal transmission.
Unfortunately, I think you lost it forever :(
The same thing happened to me in 'my fx book' while I was testing
one of my EAs on a demo account.
The account should be in Signal. So all you have to do is recover the password.
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