I don't think there was a problem with the cable to begin with, was probably another one of iBurst's lies to keep their customers 'contained'. My iBurst connection and many other people I know who have/have had iBurst always had problems with the connection.
For a year now I have been constantly complaining and contacting their customer service, each time getting another story about whats wrong and every single one revolved around it not being their fault but someone else's fault, like me, the customer or some other random thing.
Don't let iBurst lie to you, phone and email them every day, spam them constantly put the pressure on, tell everyone you know that the service is ****, that should put pressure on them hopefully and they should start worrying about their reputation and actually start helping their customers.