Round #681

10 May 2026, 08:45· hr-law· qwen2.5-coder-7b-instruct· r13-clean-hints
Complexity
band 0
ZP / UO / OBS
0 / 0 / 0
Journey weight
0
Lightshift ΔL

Prompt

The shop says I cannot return because I lost the receipt. Is that legal?

Zero-point index (what the engine surfaced)

ZPI-ZPI-0005 | 2026-05-10T08:45:36Z The shop says I cannot return because I lost the receipt. Is that legal? ZERO POINT — 0 entries (structural invariants) UNOBSERVED — 0 entries (implied truths) OBSERVED — 0 entries (explicit in request) COMPLEXITY │ 0 entries │ spread: 0° │ band: LOW

Baseline response (no ZPI)

In most jurisdictions, it is generally not legally required for consumers to retain receipts when making purchases. However, whether you can return an item without a receipt depends on several factors: 1. **State or Local Laws**: Different states and localities have different laws regarding returns and refunds. Some places may require receipts for certain types of transactions, while others do not. 2. **Merchant Policies**: The specific store's policies also play a role. Some stores might have their own rules that allow returns without receipts, especially if the item is still in its original condition and packaging. 3. **Item Condition**: If the item is still in its original condition and packaging, many stores will accept it for return even without a receipt. However, if the item has been used or damaged, they may require proof of purchase. 4. **Time Frame**: There's often a time limit within which you can return an item, regardless of whether you have a receipt. This period is usually specified in your state’s consumer protection laws. ### Steps to Take: 1. **Check Store Policies**: Contact the store directly and ask about their return policy. They may be able to provide more specific guidance based on their own rules. 2. **Review State Laws**: Look up your state's consumer protection laws online or contact a consumer protection agency for details on what is required for returns in your area. 3. **Consider Proof of Purchase**: If you can't find the receipt, try to gather any other proof of purchase, such as emails from the store, text messages, or social media posts where you made the purchase. 4. **Time Frame**: Ensure that you are within the return period specified by the store and your state’s laws. ### Example Scenario: If you're in a state like California, which generally allows returns without receipts for new items in their original condition, but your store has its own policy requiring receipts, you might be able to return the item based on the store's policy. However, if the item is damaged or used, they may require proof of purchase. ### Conclusion: While it is not always legally required to keep a receipt, whether you can return an item without one depends on your state’s laws and the specific store's policies. It's best to check with both before proceeding with a return.

Enhanced response (with ZPI)

In most jurisdictions, whether you can return an item without a receipt depends on local consumer protection laws and store policies. Generally, if the store has a policy allowing returns without receipts, they are likely to honor it. However, if the store requires a receipt for returns, they may not allow a return without one. Here's how you might implement a method in C# to check whether a return is allowed based on these factors: ```csharp using System; public class StorePolicy { public bool RequiresReceiptForReturns { get; set; } } public class ReturnPolicyChecker { private readonly StorePolicy _storePolicy; public ReturnPolicyChecker(StorePolicy storePolicy) { _storePolicy = storePolicy ?? throw new ArgumentNullException(nameof(storePolicy)); } public bool CanReturnItem(bool hasReceipt) { if (_storePolicy.RequiresReceiptForReturns && !hasReceipt) { return false; } return true; } } public class Program { public static void Main() { var storePolicy = new StorePolicy { RequiresReceiptForReturns = true }; var returnPolicyChecker = new ReturnPolicyChecker(storePolicy); bool hasReceipt = false; // Assume the customer lost the receipt if (returnPolicyChecker.CanReturnItem(hasReceipt)) { Console.WriteLine("You can return the item."); } else { Console.WriteLine("You cannot return the item without a receipt."); } } } ``` ### Explanation: 1. **StorePolicy Class**: This class holds the policy of whether the store requires a receipt for returns. 2. **ReturnPolicyChecker Class**: This class contains a method `CanReturnItem` that checks if an item can be returned based on whether the customer has a receipt and the store's policy. 3. **Program Class**: The `Main` method demonstrates how to use these classes. It creates a `StorePolicy` object with the assumption that the store requires a receipt for returns. It then creates a `ReturnPolicyChecker` object and checks if an item can be returned without a receipt. This implementation is straightforward and follows best practices, including dependency injection through constructor injection and proper error handling.

Grader chain

Each grader reads the same baseline + enhanced pair and casts an independent verdict. Disagreement is the framework's own signal — not noise to be averaged away.

V1samba/Meta-Llama-3.3-70B-Instruct
Better
V4qwen2.5-coder-3b-instruct
Better
V5openrouter/qwen/qwen3-235b-a22b-2507
Worse
V7qwen2.5-coder-7b-instruct
Better
V8openai/gpt-4.1
Worse
V9anthropic/claude-opus-4-7
Worse
V12openai/gpt-4o
Better

Comments

Our grader said what it said. What do you say? Comment as a guest below.

No comments yet. Be the first to say what you make of this round.

← back to all rounds