1. Previous Communication: Include if there have been previous attempts to resolve the issue, detailing dates and outcomes of prior contact

2. Expert Assessment: Include if you have obtained professional opinion about the damage from a textile expert or similar professional

3. Warranty Information: Include if the item came with a warranty or guarantee that's relevant to the complaint

4. EU Cross-Border Details: Include if the purchase was made from a retailer in another EU country

5. Escalation Warning: Include if you plan to escalate to consumer protection authorities or small claims court if not resolved

1. Proof of Purchase: Copy of receipt, order confirmation, or bank statement showing the transaction

2. Photographic Evidence: Clear photographs showing the damage to the clothing item

3. Product Labels: Photos or copies of care labels, size tags, and any relevant product information

4. Communication Records: Copies of any previous emails, letters, or documentation of phone calls regarding the issue

5. Expert Reports: Any professional assessments or reports about the damage, if obtained