Hello Andrea,
did you try this: http://www.adobe.com/cfusion/tdrc/index.cfm?product=photoshop_lightroom&promoid&promoid=DT EML
What concerns your eMail you should talk to Adobe, please have a look there: http://helpx.adobe.com/de/contact.html by clicking throug their questions and if "open" please use chat, I had the best experiences.
Hans-Günter