Change my ID (email address) in Adobe Digital Edition

HI,

I have a big problem with Adobe Digital Edition for my Read book Kobo.

Three years ago, I had download Adobe with my old address ¨Sympatico¨.  Now, my address is with ¨Videotron¨ and I have not had my old password because my old address doen't more exist.

So, It's impossible for us to change my ID for the new address with Videotron.

Could you help me, please????

I am going to go to a long trip and I need my read book.  It doesn't work now for this reason.

Thank you very much!!!