The Royal Protector Warlock set was an Eververse purchase, it wasn't given as part of any pre-orders/ultimate edition purchases. The ultimate edition Warlock set is the Marauder Progeny set, that is showing as unlocked for you. If you're sure you purchased the Royal Protector set, you can check [url=https://www.bungie.net/7/en/User/Account/EververseHistory]here[/url]. If it shows on that list then fill in the form linked at the bottom of [url=https://help.bungie.net/hc/en-us/articles/360049497351-Contact-Form-Missing-Eververse-Item-or-Add-On-Items]this page[/url]