Convert Starter plan to Bronze in existing app

Dear Developers,

I created an app licence with cloud reco Starter plan. I have added about 40 to 50 trackers and my app is ready to go live now.

How do I switch the app from Starter plan to Bronze? I could see an option to do this before a couple of weeks but can't find it right now..

I have attached the screenshot of my app from licence manager.

Any help is much appreciated.

Thanks in advance!

Jainam