- Completed and dated warranty form (mandatory to validate case opening).
• Proof of purchase (original invoice or receipt with date, product, price, and retailer).
• Product identifiers (model, serial/lot number if applicable).
• Clear problem description (since when, frequency, conditions).
• Photos/videos illustrating the issue (if applicable) + proof of normal use.
• Full contact details (name, phone, email, shipping address if a return is required).

