Originally Posted by HansTWN
I have a Kindle DXG. Neither the option "Prime Members Library" appears in the menus, nor does it show "borrow for free" when I browse to a book I know is included. They can, of course, tell via the 3G that I am abroad (can't spoof the 3G like you can WiFi) but Amazon service told me it wouldn't matter as long as I am a Prime member. Perhaps it is because I am still on my trial month?
I suggest you chat/email/call them back. The trial should let you do everything, else it isn't a real trial.
You could try a proxy also.