Not receiving app purchase request from child

Hello there Denver2006,

Thanks for posting here on the Apple Support Communities! This is a place where other Apple users can submit questions or respond to others to help lend a hand.

We understand purchase requests are not appearing. Let's take a closer look as we do our best to provide some additional insight.

To get started, did you complete all of the troubleshooting steps in the resource that brought you here? If Ask to Buy isn't working

The reason we ask is if issues persist after completing all those steps, then you'll next need to contact Apple Support for additional help as mentioned at the end of that same article. 

We hope this helps get you pointed in the right direction.

Take care.