If you have single-choice question and want to redirect the user to the related product field, follow these steps:
Add your single-choice question whit your options to choose.
Then, add different product fields for each option in your single-choice question.
🗄️ Old dashboard:
Now, use logic to redirect the selected options to the related product fields.
🗄️ Old dashboard:
This way, they can redirect to your payment gateway after selecting the amount of product field.