IIRC, for the eBooks I gifted the UK ones to myself from a second account. I'd guess the audiobook (it's not from Audible) would be similar. It was quite a while though so I'm not sure if there were any special details. Pretty sure it was discussed in this thread...
https://www.mobileread.com/forums/sho...d.php?t=173500
FWIW both the Jim Dale and Stephen Fry versions are excellent IMO.