Harvin
If you want to replace the LCD panel yourself here below are two more links that have information on Omega Displays and where you may be able to source an LCD panel from plus some further general info that may help.
The first is a link to this forum and it is a tale of woe from a member and his dealing with Vauxhall over the same fault as yours and mine. He too managed to solve the problem by replacing the Sharp LCD panel with a Sharp LQ5AW136 (as the LQ5AW126 is obsolete). He sourced his from Germany but there are UK suppliers.
The second link is to Sharp and gives details of suppliers in the UK section where panels can be obtained from.
http://www.omegaowners.com/forum/YaBB.pl?num=1194472993/0 http://www.sharpsme.com/Page.aspx/europe/en/584a4758-fe34-4f95-a54d-e3b92ca554fa/The last information is from the Vauxhall owners network and gives details of where this member got his panels from. You will note from the price he had to pay that there is only approx £30-40 difference between a DIY job and BBA-Reman (unless prices have altered substantially). You might wish to note that you
may have difficulty in getting someone to supply you, as from experience they can sometimes be very touchy about supplying items like this to non trade/non manufacturers
"The LCD in my NCDC 2013 was a Sharp LQ5AW126 and I found it impossible to source, but I discovered that an Sharp LQ5AW136 was an equivalent. I got hold of the data sheets for both and compared them and they appeared identical so I bought one in the Uk, fitted it, and it has worked absolutely fine for 3 years now.
The cheapest LQ5AW136 I came across in England was £145 before tax and delivery - Eurodis Electronics (+44) 8707 568199
I purchased mine at £165 from Hero Electronics (+44) 1525 405015 - the guy was very helpful and offered a full refund if it didn't do the job! so I paid up for the extra service. You do see them occasionaly on Ebay"
Hope all of this helps you.