What documents are required to file a consumer complaint online?

Generally, you'll need proof of the purchase or transaction (invoice, receipt, or order confirmation), any communication with the seller/service provider about the issue (emails, chat records, complaint reference numbers), and, if applicable, photographs or other evidence of the defect or deficiency you're complaining about.

You'll also need your own identity and address proof, and a clear, chronological summary of what happened — when you purchased the item/service, what went wrong, what steps you already took to resolve it directly with the seller, and what specific relief you're seeking (refund, replacement, compensation).

Having these documents organised and ready before you start the online filing process makes it considerably smoother, since the portal will typically ask you to upload supporting evidence alongside your complaint details. If your claim is more complex or high-value, it may still be worth having a consumer lawyer review your complaint before submission, even though the platform itself doesn't require legal representation to file.