I sold my watch last night but didn't realize I needed to unpair it first. I reset my watch, so it's no longer listed on my iPhone watch app. Apple support instruction says I can log onto icloud.com and remove it from my device list. When I log onto my iCloud account, I don't not see the watch on my device list. The buyer cannot pair the watch to her phone. I can't remove the device from my account. Any idea what I can do?