When I logged onto my spotify account today via my iPhone 6, I noticed "Devices Available" displaying at the bottom of the page. When I clicked here, a new screen appeared (see attached), showing my spotify account connected to a device called Móhre-PC". I have no idea who or what this device is, as I have not connected my spotify account to another other devices other than my iPhone (to my knowledge)

When I attempted to play songs, they would be changed to other music that I had not selected or chosen, as if someone else was

I cannot see a way for me to either view the device(s) that are connected to my spotify account, or in fact more importantly a way of disconnecting devices connected to my spotify account.

Has anyone else had this happen? How has this happened? Any ideas how to remove connected devices?