On the account page you have subscription 1 shown. Click on this and up pops a list of PC names . Disable the name of the 1 you want to remove.
thanks tried that ..... but all 4 PC's names come up as N/A so I don't know which one is which ....stupid of me I know !!!
Have you named the Pcs if not do so for the 3 and those that then are not redected as N/a are the 3.
Ok working blind here but if they are named they should show.
If above no good call customer service and see if they can help. they have more tools than I have.