Reduce merchant chargeback losses with rule-compliant AI dispute responses

Chargebacks are an escalating cost for online merchants—small and mid‑market e‑commerce sellers in particular—who must produce card‑network compliant dispute narratives to recover lost revenue, yet lack the time and expertise to do so reliably. With 25 million online merchants worldwide and an addressable service value of about $5.0B (roughly $200 ARR per merchant), this is a pervasive operational problem that disproportionately hits merchants with thin margins. You could build a rule‑aware dispute automation platform that maps transaction evidence to specific card‑network reason codes, generates constrained LLM‑assisted narratives from vetted templates, and provides an auditable human‑in‑the‑loop workflow plus PSP/gateway integrations. The product should include evidence ingestion, template libraries per network, API integrations for bulk responses, and tiered SaaS pricing with a baseline $200 ARR offering and premium services for analytics and managed responses. Timing and market signals favor entry: improvements in LLM‑assisted document generation materially boost narrative quality and speed, e‑commerce growth increases absolute chargeback volumes, and increasingly complex reason codes create demand for software that codifies network rules. Market indicators are strong (market score 94/100; revenue potential 86/100) and competition is medium, but success will depend on rigorous rule engines, audited training data, deep integrations, and conservative human review to manage legal and reputational risk; the main operational challenges are scaling evidence ingestion and keeping mappings current as networks change their rules.