I was able to text to (800) 6902-7753 from my iphone with someone at apple who helped me do an exchange by mail. The original apple employee transferred me to an apple watch specialist, who was able to do the exchange. I ordered the Charcoal Braided Solo Loop. I was only able to change it for a smaller size, he wasn't able to change it to the green one instead. He said I'll receive the new one in the mail and would return the one that came with the iPhone originally in the same box the replacement will come in.