Contact Microsoft: suggestions, wishes, lost product keys, lost or broken CDs and DVDs
Lost Product Key
If it is a retail sofware version contact Microsoft at (800) 360-7561
If you're outside the US, see this site
If the software came preinstalled on your PC (OEM version) then you'll need to contact the computer manufacturer for a replacement key.
Lost CD or DVD
If you have a valid product key for Office 2007, 2010 or 2013 and need to reinstall, visit Download, backup, or restore Office products
For older products, here's some older information from Microsoft; it may no longer be valid, but it's worth a try:
If you need a replacement CD or replacement DVD because your original is lost or damaged, see Microsoft Press CD-ROM and Floppy Disk Replacement Policy
Microsoft Sales at 800.360.7561 number may be able to help with replacement CD/DVDs as well.
Here are some other options to try:
Suggestions, wishes, complaints
Microsoft has a habit of setting up email addresses and web sites for customer contact, then abandoning them. We'll try to keep the information here up-to-date but if the links don't work ... business as usual at Microsoft.
At the moment, we have no links ... MS has already deleted the last one we had.
You may also try Microsoft Sales: 800-426-9400