I will proceed to explain and also attach pictures to aid in the understanding my argument, I have also attached a picture of the result sheet for your perusal. I have included the link to share the location of where the event occurred below.
https://goo.gl/maps/rf7dq8jnktT2
I was approaching the first roundabout which can be found once you exit the A1089 towards Grays coming from Asda's Roundabout from Tilbury Town as per the attached pictures. I saw on the Satnav and was informed that I will be required to take the 2nd Exit towards Chadwell St. Mary (CSM). The satnav displayed the exit towards CSM as being straight ahead or at 12 o clock from where I will be entering the roundabout. I then entered the Left lane on approach to the roundabout to which I stopped to ensure there were no oncoming cars. I entered the roundabout in the outer left lane where I then signalled left after passing the first exit and left the roundabout on the exit towards CSM as instructed by the satnav. This unfortunately was deemed a serious fault, my only serious of the driving test and resulted in my failure.
The assessor is of the opinion that I should have been in the right lane upon approach and stayed inside of the roadabout to leave at exit 2. He also claims the Satnav told me to turn right to leave at exit 2 which I am sure it didn't. As attached if I were to enter the roundabout inside and a car enters from the first exit with intentions of going pass or even to the 2nd exit they would impede on me exiting. It's very much open to interpretation and it being the event that cost me a license I would like to challenge his decision.
I have been searching for case studies and found a forum post where an individual was sharing her experience on a similar situation where she was penalised for entering in the right lane and staying in the inner areas of the roundabout before she exited. Her situation was much more "straight forward" than that of mine. Please see link https://www.rac.co.uk/forum/showthread.php?23115-Roundabouts-confusion. Based of her situation my decision was correct.