Moto 360 won't update to the latest version

I've tried resetting it, deleting the wear app, unpairing bluetooth...even tried it on my tablet and the thing just will not find the update. My friend did it the other day on his new phone and it grabbed the new update straight away.

I tried contacting Motorola support and they were useless... Does anyone have any other suggestions? I wouldn't be that bothered but I feel the wifi would make me use the watch far more, plus with the latest version it works with iPhones and I'm thinking of switching to an iPhone 6S Plus!

Thanks in advance for any help.