Our recommendation
Payment Link
Based on your answers we recommend you to use Payment Link. It's a link you can send to your customer, and it will take them to a Dojo Prebuilt Checkout Page for them to complete the payment. The payment page works across different devices and can be customized. With the payment links, you can sell online without a website. You could send the payment links after interacting with your customer through chat or email, or any other channel.
You can create payment links either in the Dojo App, or using the Dojo API:
Dojo App Create each payment link manually using Dojo App.
API step-by-step guide Generate payment links automatically through the API.