Сommunication How to stop notification emails?

I am in a group buy (paid, and in buying status l, and i keep receiving emails when events happen (in the many threads that are used to support the end to end process- three threads?). How do i stop those emails. I have changed my alert preferences, i have checked my watched forums and watched thread lists

There's no unwatch option (i am on Android mobile) in the threads i am receiving the alert emails from.

I am ok if the alert bell icon is used on my profile, but not my emails... It's clogging up my inbox. When i am creating this new thread i am choosing to add it to watchlist but not send me emails... Would like same thing for all the other threads that i somehow got emails turned on for when i replied