Hello alexpander (love the name by the way)
Thanks you for taking the time to contact us in regards the device allowance and registration of your PC for Virgin TV Go. We appreciate you making us aware of this and welcome to the community!
We have recently made some changes around the device allowance and registration that should have resolved this issue. We have today reset the device allowance on your account and would appreciate it if you could monitor this going forward and let us know if this has fixed the isse?
If not, let us know so we can look into this further.
Rob