Automate login and transaction on a website without it detecting as a bot

I need to login to a website, click on a button, then fill in a few fields and then click on another button. I need to confirm if the transaction successfully processed. I've successfully done this with selenium and firefox, but it detects me as a bot so I need manually intervention. I need a script or a program that can take as input: 1: Website 2: username and login 3: email and name for transaction. The script or program will need to be able to be kicked off when it receives the input, login to the site using the login info, then process the transaction for the passed in name and email. I will provide the site and screenshots of the transaction once someone has shown me they can do this.