Check the SPAM folder on your mail server. If our letter is not there either, then go to the "Contact Us" section and send a message to support. Be sure to include your work email address when filling out the form.
Check the size of the downloaded archive, it should be equal to the size specified in the product description in the store. Use WinRar or 7-Zip to open our archives. If these programs are already installed on your PC, then update them to the latest version and try to open the archive again.