Amember integration with payforit API

Hello, I have installed on my website backend a program called Amember membership management software, this is built using PHP. It should communicate with a mobile billing API from txtnation called payforit. It is currently not functioning. I need someone to have a look at my Amember programme backend or frontend as needed, look at the payforit API instructions as needed, and fix the issue so the billing process works as intended. Amember wiki, description, and instructions can be found here: [login to view URL] Amember plugin details can be found here: [login to view URL] txtnation details re payforit can be found here: [login to view URL]