When a company won't make things right, external reporting is your escalation. It creates a record, adds pressure, and sometimes triggers action.
Regulators and boards generally expect you to have tried to resolve it with the company. Keep your paper trail from that attempt — it's part of your report (filing a complaint).
Government consumer-protection and fraud-reporting bodies take complaints about unfair, deceptive, or fraudulent practices. Reports build cases even when a single complaint doesn't get an individual reply.
Banks, telecoms, utilities, airlines, and healthcare often have dedicated regulators or ombudsman schemes with real teeth. These can be very effective for regulated industries.
Public complaint boards and review platforms — including 13.gripe — add pressure companies genuinely care about, and warn other consumers. Public + regulatory pressure together is potent.
Be factual and specific: what happened, dates, amounts, your attempts to resolve it, and the outcome you want. Evidence and a calm tone make reports credible and actionable.