1. The issue that caused the complaints.
2. Steps you have taken to resolve the issue and ensure similar complaints won’t happen again.
3. What you would sell in future.
3. The sources of your inventory.
4. New supplier information.
5. Copies of receipts or invoices for the future inventory that you want to list.
6. Any additional details you would like to add.
「5. 将来的に出店したい」は、「5. 将来的に出展したい」のタイプミスです。失礼しました。