Sales and service

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Across
  1. 3. Information or opinions about something, used for improvement.
  2. 5. A mutual understanding or arrangement between parties.
  3. 8. The process of growth or improvement.
  4. 9. An expression of dissatisfaction.
  5. 11. A bill listing goods or services provided and their costs.
  6. 12. Activities to increase awareness or sales of a product.
  7. 13. A person who buys goods or services.
Down
  1. 1. A proposal to provide goods or services at a certain price.
  2. 2. A reduction in the usual price.
  3. 4. A place or area where goods are bought and sold.
  4. 6. The act of directing someone to another person or service.
  5. 7. A distinctive attribute or aspect of a product.
  6. 9. A legally binding document outlining terms and conditions.
  7. 10. The process of teaching or learning skills.