iCloud activation issue
I have purchased a Apple Watch series 3 second hand, the seller was on Kijiji, the iCloud account was not removed from the device before I purchased it, At the time I wasn’t aware that this was even a thing, How can I set up the watch to my iPhone if they forgot their password or iCloud account ID or if they just don’t contact me back to take care of this issue ?
I spent $200 on a watch that I can’t even set up. Please help
Apple Watch