I'm really sorry that you didn't get one of your top choices from your application form. I assure you (and I thank Kpwxx, Jakelee, Pigwigeon and anyone else that has given you advice so far) that we do, wherever possible try to give students the highest available choice from their application forms but unfortunetely this cannot always happen especially when we are 100% full like we will be this year.
As I think you have already been told getting you into a room to yourself is one of our highest priorities. We know as well as you do that the situation that you have found yourself in is not ideal. If we could we would make sure that every student had their own individual room however that would leave a fair few empty beds in the twin that we could help other homeless students with. We have a duty of care to ensure that everyone that holds a guarantee of a bed in our residences gets one.
When we have finished allocating beds to all of our guaranteed students the process of moving people around campus into single rooms begins. This could even be before the main arrival days if we have time. Even if you do not have a single room on your arrival you will be asked to fill out a room change form to say that you would like to put in a single as soon as possible.
At the end of the arrivals process we will find that we have a few empty rooms because some students did not turn up or left UEA because they decided University was not for them (perhaps to get a job instead for instance). It is these rooms that we would be able to offer to students in your situation as you would be one of the highest priorty groups for us to rehouse.
One thing I will say, and you won't believe me now but I assure you it is true, is that when we do offer the single rooms to students a large majority of them decide to stay in the twin. Whether this is because they have worked out that the monetary savings are worth it or that they get on with their roomate and flatmates it happens more often than not. Of course there are still some that want to move but this just means that there would be more choice for them.
I do understand your disapointment but please try not dwell on it, and don't let it ruin what is a very exciting time of your life. We are here to help you and we do listen to what you have to say. We don't like having to put you in your last choice of room any more than you like being put there. It is much better for us to have happy residents that unhappy ones.
I hope that this puts your mind at rest a little but if you want to discuss this further please PM me and I can give you my phone number and I can go through any concerns that you might have with you.
As for layout of the room being different on two different plans. That will be because there are two different layouts of the twin rooms. It varies slightly from room to room.