in reply to my own comment - the change finally went through, it just took 45 minutes - so I guess as it says in the help docs - it just passively checks then uploads.

I don’t have data on my phone - so I did a change then when I got home I tried to upload it, I don’t see a way to do that.

I went to hamburger menu > settings > profile >

now I see “Not sent: 1”

but I don’t see how to send it, now that I am back on the internet.