Hey Laven,
Thanks for the report! According to our records you completed and received the mount. Are you sure that you are looking in the correct section for the mount? It should be located in the ‘Events’ section of mounts.
If you’re still encountering the issue, could you please post a screenshot of your Event Mount page in Collection/Loadout. Or send the screenshot into our Bug Attachment Inbox.
Thank you,
~ Fizivix