Hi , I'm a panel owner ( likers king dot com ) . I can give you fully automated website which will integrate with other reseller panel using API for fetching packages and placing order. Payment system will be fully automated from loading fund to refund cancel and support almost every payment gateway including PAYTM .
I have gone your all your requirement and i assure you that you are with right people to get this job done . It will take just 15 min to install and make you get set go in this business once you approved me. And also i will give you other panel details cheaper and better . contact us at likers king.
Thanks have a nice a day