Important: The relevant documents vary by industry and forum. This checklist is intended as general guidance.

Keep proof of purchase ready

Invoices, receipts, booking forms, payment confirmations, order summaries and warranty or policy papers form the backbone of most consumer complaints. They establish what was promised and what was paid.

Capture the service deficiency or defect

Photographs, videos, service reports, inspection records, screenshots, call recordings where lawfully kept and written communication can help demonstrate the actual problem and the response to it.

Show the complaint history

Complaint ticket numbers, emails, chat transcripts, courier receipts and follow-up messages are often just as important as the original invoice. They show that the consumer gave the seller or service provider a fair opportunity to respond.

Clarify the remedy sought

It helps to note whether the complaint seeks refund, replacement, repair, compensation or another specific direction. Supporting material for loss, inconvenience or extra expenditure should be arranged separately if compensation is claimed.