I know that brand well. There was another brand I found wallet cases on, but wasn't quite what i was looking for--and you can customize literally every aspect of it. I can't find the bookmark, but I recall bookmarking it.
I think I just found out what there aren't too many phone wallets made by premier designers - the technology changes too often, so - . They don't like to make changes that much - at least one good thread in the Chanel forum about it. http://forum.purseblog.com/chanel/chanel-phone-holders-worth-the-price-934015.html