A HarperCollins book from my wishlist is currently $1.99 at Amazon, but I'd rather buy at Kobo. Search on author; the book's $1.99. Click on description; the book's $1.99. I've had problems with the "Buy Now" button at Kobo, so I add it to my cart. A good thing, because once in my cart, the book is $9.49. No matter how many times I repeat the steps, so it remains.
It's not worth the risk of buying it in my cart and hoping to be charged the "real" price nor the nuisance of contacting Kobo CS. I figure I'll try again later and ultimately will buy from Amazon if things don't right themselves, but buying a book shouldn't be this much trouble.
I don't love Amazon which certainly hasn't always done right by me, but at least I know that any issue with an ebook price can be undone immediately by returning a book.