Cannot seem to figure out how to choose a build on apple connect

It says to use upload tools and on the thunkable doc the build just appeared.

Did you just upload it. Sometimes it takes a short while before you’ll see your build there.

Hi, the build was sent to Test flight on september 29

Did you ever recieve an email from Apple saying it was ready?

I can see the build is on Test Flight and got an email from thunkable however I got not confirmation from Apple.