The cancellation and billing flow needs fixing. I sent a written request on July 28, 2026 to cancel the $25/month Developer Plan. Further $25 charges followed on August 2, September 2 and October 2, totaling $75 after that request. When I checked on October 21, the app showed Free Plan, while Stripe still showed a paid Developer subscription renewing November 2. Neither billing page offered a cancellation control. I have now submitted Amex disputes for the three post-request charges and again asked OpenGraph to stop billing. Customers should not need a card-issuer dispute to resolve a cancellation request.