It looks like you were able to successfully change your username to holylandreport. I also see a blog under your account holylandreport.wordpress.com. You can see your email address on this page when logged in:
Is all of that information looking correct? @Timethief is correct in that accounts cannot be deleted. Blogs, on the other hand, can be deleted. So, in this case, it looks like you deleted your previous blog expressingtheorient.wordpress.com, created a new blog with your desired blog name, and changed your username (which was the best way to go!).
Now, in order to have the domain holylandreport.org display instead of your default WordPress.com address, you will just need to register it as explained here:
Let me know if everything is setup how you would like it to be and if you have any trouble registering the domain!