Hello and sorry you're having problems.
Please view the info at the link below to transfer books from one Kindle to another. This is done through your Amazon account:
Feel free to reply back if you need more help, or want to reply back with more details. It does not cost you anything more to reply back once you've rated. Please do rate me positively (at least 3 STARS) and I will continue with you until this is sorted. The positive rating ensures I am credited for my work.