Hi There - I recently purchased an iPhone SE and had to exchange it for another one at the Apple Store. I completely reset it before giving them the old phone but I cannot remove it from my account. I went into my devices and selected "Remove from Account" but for some reason it won't remove itself. It shows that it's currently removing the Amex card tied to the phone (but won't complete) and for some reason I can't completely delete the device. I then changed my iCloud password and it still appears. Any idea on what I can do to remove it?