Dear All, thank you yet again for all your responses. I will have a look in the CAP 413 so that I recognise the format. Having looked at your suggestions I think it is most likely to be a combination of issues. I listened to a lady from Northolt which I assume was a recorded message and got most of what she said because the transmission was very clear and she spoke nice and slowly.
I am doing my NPPl at Denham and was a bit concerned that there might be an issue - obviously dont want to spend loads of money only to find out I can not pass the RT