Feel for you Josieb1. How frustrating.
Get your refund, wait for your Voyage to come and if you are not completely happy with it, return it and then try the H20 again? WH Smith will have stock by then, you could even go in store and demand to be allowed to open them all up and inspect them until you get one that is exactly as it should be!
I remember when there were issues with the original Paperwhite, some people were lucky enough to get a good one straight away, others tried 5 or 6 times and still weren't happy.
