Definitely worth another try I think (although the cynical side of me wonders if their unwillingness to share means they don’t have any Omnipods funded already by Surrey PCT).
Couldn’t agree with you more about personal choice. The intangible/quality of life benefits are so important, but also so hard to express in a business case. Omnipod must have been through this argument before with other PCTs, they should really be providing you with a bit of support here. And if they’re not willing to put the effort in to win the business, I’d be asking them how I can have any confidence in them being there for me once I’m actually using their product and need help.
Have you tried contacting INPUT? They help a lot of people with getting pump funding and might know of Omnipod users in Surrey, or what arguments other Ominpod users have used to get funding http://www.input.me.uk/