Getting a book for sure onto my ereader (I hope)

I've been having a little trouble getting The Guardians of Ga'hoole loading onto my Kobo ereaeder via my Borders app. I did do a reset (aka a pin in the back) but that didn't help. I rang Borders and spoke to Kobo - those lines are blurry. And they said download a copy from my Borders account accessed via the webpage (not the application) and then click on the downloaded item which will then load into Adobe Digital Editions. I can then drag the file from ADE onto the icon of my ereader when I next connect.

The other advantage of this process is that I now have a copy of the file on my laptop, which is backed up, so if something happens to my reader and I can't access the web. I can still read the book.