[cybmole]

have you tried the obvious renames - to AZW3 and to MOBI- maybe the "tools" will kick in after a rename ?

goggle says that pobi is v similar to AZW3

that's probably all we are allowed to say here, within the rules

otherwise - well amazon are usually pretty good with refunds & the dark web probably has readable copies - stupid publishers shoot themselves in the foot again.

there is possibly yet another type of workround - the one that lets you watch BBC player from overseas - you use a DNS service like UNODNS which makes it seem that you are in the correct country for what you want to do - e.g. subscribe to a geo restricted service. I use UNO to watch USA netflix from UK . it's a paid for service but providers of these services usually do 7 days free, and maybe that's all you need to get the subscription setup.
A free trial of a VPN is probably better because UNO only intercepts specific sites/service requests, like iplayer, netflix, Hulu... With a VPN , B&N will see you as UK or USA based if that's what you setup.
You really should NOT have to jump through these hoops though. I would hack the thing on principle at this point.