It's really unfair that they don't, I don't use the PC very often, but it should be the same as with phones/pads/pods.
If your account goes completely inactive to the point where you cannot find him by searching him anymore, is it possible to get on him still?
If that was the case, the account has been reset. All information and everything on it has been erased.
If you have the iDevice/Android or PC log in, you can re log in. Otherwise support can not help for an account that ism't available.