Hi simonwray
Welcome back to the Community Forums.
Sorry to hear of your external cable replacement concerns. We can see on the systems on our side that you've already been speaking with the team who have assisted you with your query and are working to resolve this for you.
We recommend only speaking with one support contact regarding the same issue, as this can lead to confusion and further delays when multiple requests are made for the same thing on an account.
Please let us know if you are having any further issues or have any questions at all. We'll be here to help on the Community Forums if needed.