@ RedDevil_UK
Just been re-reading this thread m8 and I notice that you paid S*y. If my memory serves me right, you need not have as the prescriptive period for commercial contracts is 6 years, provided that the debtor has taken no action to recover the debt during this period.
In other words if you had heard nothing at all from Sky for 6 years or more then they cannot successfully pursue a claim against you for that debt.
Wish I had spotted your post earlier, sorry.