I completed a shop on June 23, and the shop is still pending with status saying "in review". I contacted the scheduler a few times, and initially s/he said it will be reviewed, but now s/he doesn't even respond. It's going into the 7th week and I'm feeling like I will never get paid for the work. Is there anything else I can do besides just wait and send another email to the scheduler?

I would email the scheduler again, and you might want to put in a ticket with iSS. There's a place where you can add files; you can add screenshots of your emails showing your attempts to contact the scheduler.

Thank you for the tip! I'll do this.

Is there a place I can see my shops not yet approved? I completed shops but they aren’t showing up on my payment page. If rejected, where can I see those?

Yes! On the Payments screen to the right, there is a dropdown menu that says "paid". Use that to select "pending," which will show all completed shops that are pending payment.