How to process requests (instagram)?

Question

.NET

Good afternoon. As you know, in order to get into a closed group, you must send an application, which will already be accepted by the owner of the group.
But the problem is that thousands of applications come to the group and there is no way to process everything. I want to write a script that will handle all of this.
What is responsible for accepting the request, what needs to be worked with? I need to understand how to accept 1 application.
I thought about it and decided that it is possible to make a clicker that will constantly click on the "accept" button. How to do it?