I'm not sure how it works with PayPal since I only had to do this for Stripe but: First I reach out to the person over email and kindly ask them why they dispu

I'm not sure how it works with PayPal since I only had to do this for Stripe but: First I reach out to the person over email and kindly ask them why they disputed the charge with a number of things we can do as an alternative. If they don't reply within a few days then I contest the dispute with piles of evidence that the user indeed signed up to my platform and downloaded / consumed the content.