It's unlocked. Thanks guys. I have to admit, I'm a bit wary of rooting after this experience but I'll give it a go with your guidance. I had thought that this video was the best way forward but it's not user friendly enough, I feel. If you watch the vid, you'll see that, after rooting, action needs to be taken to remove the 'bootloader unlocked' warning and to fix the camera. I have to go out now, see you later.
http://www.xda-developers.com/how-to-root-the-moto-e-2015-and-unlock-the-bootloader-xda-tv/
http://www.xda-developers.com/how-to-root-the-moto-e-2015-and-unlock-the-bootloader-xda-tv/