You have posted to the "Internet & Technology" area of the forums, with Web Designer as your product, but your email mentions movie studio. If your question is about Vegas Movie Studio, there is a dedicated forum for the Vegas range of products here.
So, please post back and confirm exactly which Magix product you have. If you confirm it is Vegas Movie Studio I will close this thread.
The only solution to your problem of a misspelled email address is to contact Magix Sales via the Support button in the header of any forum page.