I created a Manual Payment Method and used the code from my payments provider but unfortunately I made a mistake and left a couple of brackets. Does anyone know how can I edit the code? I've tried asking through the Help Desk Chat but it wasn't helpful. I understand I can deactivate the payment method I created but then, when I go to create a new one it just says "a payment method with that name already exist" and the problem is I need to leave the same name or the code won't be recognized and won't work.
So, how can I edit the code or delete (not deactivate) the payment method?