Hooray! Amazon have taken down the pirated version of Blood Ties.
Thanks to everyone who helped me in this. I especially want to give a big shout out to my friend RJ Parker, a successful Amazon author of true crime books, who really went into bat for me with them. Thanks RJ, you're a champ! :-)
UPDATE 1, 16 March: Finally received an email from Amazon advising me that they'd actioned my request and had taken down the pirated book (a week after they'd already done it!).