Access Denied on a My Passprt 4 TB drive

Does anyone know how to get back access to an external hard drive?
I have a WD My Passport 4 TB external hard drive and it recently started giving me an Access Denied error message. I’ve only had it for maybe a month and it has all my files and folders on it (yes, there’s a story to it.)
I contacted Technical Support but no one seems to want to help.

Have you tried to look into the drive ownership setting? It seems the drive ownership has changed and this is why you are receiving this error message.