
Refund
Transactional Context
 Used when talking about financial transactions involving goods or services that didn't meet expectations. 
Since the laptop was malfunctioning, I asked for a refund.
 Proof Required
 Documentation or receipts are often needed to get a refund. 
Keep your receipt if you want to request a refund later.
 Time Sensitive
 There is usually a time limit to claim a refund after making a purchase. 
The store's policy is to allow refunds within 30 days.