I know you've posted this on the Cable Account board, which I don't usually deal with. But as you've referred to a broadband speed issue this has been handed to me to take a look at.
I know that you have already been notified, on this forum, about fault ref: F003245754 affecting you. This fault requires a network upgrade which in turn requires some extensive pre-upgrade work to complete. The review date we provide, on this Forum, is usually in relation to the status of the pre-upgrade work. If it's not complete then a new review date will be provided until, eventually, the actual upgrade can begin.
I do apologise if you've misinformed at any point. Though I do believe you have been sent to a team for advice on any credit that you may have been eligible for. Were you contacted?