Worldpay offers many different gateway services to international clients. Currently LearningCart is integrated with Worldpay XML Direct.
To integrate LearningCart with your Worldpay XML direct account you will need your Merchant ID and XML Password. Generally these values will be sent to you via email when your open your Worldpay account. If you do not have these credentials please request your Merchant ID and XML Password from Worldpay support.
Once you have the necessary information, enter your Merchant ID and XML Password into your LearningCart Payment Gateway Settings page in order to enable payments.