I have the same problem on iMessage. iCloud reports 7+gb of message storage being consumed, but each of my devices and my top conversations only report 1-2gb of content. I haven't found a way to force sync the missing content so I'm stuck paying the $1/month plan.
> I haven't found a way to force sync the missing content so I'm stuck paying the $1/month plan.
And this is why they (and many companies) behave this way, there's no incentive to fix a problem that you will just pay them more money to fix. Fixing the bug means reduced revenue. Complaining about the problem sadly won't help, you can only stop using the app and stop buying their products.
