Welcome to the Magix user to user forums, so not a contact for any Magix staff and confidential information, like your serial number, should never be posted to this public forum. Hence, i have edited your post title.
You say your product is MAGIX 10 but that gives us no clue whatsoever as to exactly which product you have! Magix is the company, not any product. Please be more precise about what you are asking. Thank you.
With that additional information we may be able to offer some advice.