My new HP laptop case got damaged at the corner. All the ports near are working fine. Even the laptop also works fine. But since it is new and still has the warranty, I would prefer to replace the top and bottom lid with new one.
You may order the replacement parts on the HP Parts Store, use the HP Parts Surfer to find the part number and If you've already looked for it and couldn't find it on the HP Parts Store, you may want to get it locally at the online store such as Amazon or eBay, etc, as the part numbers are universal.
Alternatively, if the device is under an accidental damage protection plan (warranty) please contact HP Support Team.