Jackson Murray

Just recently got a new PC so I figured out it'd be a good idea to log out from my affinity apps. I logged out from the device and installation on the new PC went smoothly. I registered the new device, but when I checked the "Registered apps & devices" tab I noticed there was already a person using my account for Affinity Photo. Is there any way I can log out from this device? As it's usual I sold my old PC so I don't have access to this computer. Thanks in advance.