Hi
Just need to highlight what Terpe has stated.
Not sure if your wife has sat for her test as I have not read this thread in its entirety. If she has yet to sit for her LIUK test, DO NOT forget to bring your marriage cert so as to confirm on the name change (should there be any), plus a proof of address.
I neglected to bring my marriage cert the 1st time and was rejected for the test. Had to book another one and the 2nd time around, I brought my whole file of paperwork!
I sat for the test on 12 October and I must say it is so much easier that all the simulation tests I did online. Your wife will be fine. Good luck.
Check out this link. It uses the same format as the LIUK test. Cost £29.00 to register. Left a testimony on the site too. I am Serena.
http://ukcitizenshipsupport.com/customer-reviews/