You're in a different country. Kanye West and his attournies have no legal authority over your personal dealings with a coin that "is in no way associated with Kanye West" and you have no control over. He is literally the biggest douchebag celebrity I can think of and is merely using his image to try and exert power over you, among numerous others, based on an idea that people are mistaking the coin for being originated by himself... which is obviously not the case... but he himself has attributed COYE to being associated with his image.
I can guarantee that Kanye would never be able to "legally" touch you since you are merely a single entity among several others, including corporations like amazon (that supposedly hosted a site promoting the coin), ebay (that has had numerous Coinye coins auctions), and many other people that looked at him the wrong way.
YOU ARE FINE and it would be shooting yourself in the foot to remove Coinye (one of the only big up-and-coming coins that lacks a true exchange) only a day after launching the site.
That's my $.02
Myself and many others would most definitely start a coinye/dogecoin donor thread to cover any legal fees if by some miracle it ever reached that point. However, I'd recommend responding to the letter with a response packed with satire and a knowledge of your rights as a NON-US citizen, in which copy write infringement is taken with a grain of salt.. especially since you are merely offering a service and not in any way part of the development of the coin protocol. You don't even have the COYE logo on your site, which further removes you from the alleged "infringement". If that were the case, I'd be getting sued right now for typing COYE in this thread.
Take a look at thepiratebay.org... They have a section on their site full of hundreds of letters virtually identical to this one from the largest companies in the movie/software industry in the world... also posted is their smart ass responses and their legacy is proof that they cannot be sued overseas...
It's merely a scare tactic.
+1 just bunch of bullies trying to push their weight around
I did mention about coye getting sued few days back and that the coin is getting dumped cause of it.
Kanye west is a trademark and their legal rights stand elsewhere also, but the main reason it's getting dumped is cause developers of the coin already admitted their loss(wise choise if you ask me, war that they couldn't have won)