Chargeback for Duplicate Charge: How to Dispute and Get Your Refund (Complete 2026 Guide)
Step-by-step guide to filing a chargeback for duplicate credit card or bank charges on Visa, Mastercard, Amex, PayPal, Stripe, and Square. Updated 2026 rules, time limits, evidence checklists, sample letters, and success stories for 80%+ win rates.