Round #813

10 May 2026, 18:00· hr-law· Meta-Llama-3.3-70B-Instruct· r14-length-bound
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 | 2026-05-10T18:00:07Z 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 the United States, the laws regarding returns and receipts vary from state to state. While there is no federal law that requires a receipt for returns, some states have specific laws or regulations that govern return policies. Generally, a store's return policy is considered a contract between the store and the customer. If the store has a posted return policy that requires a receipt, it's likely enforceable. However, if the store doesn't have a clear policy or doesn't post it, they may be more likely to work with you to process a return. That being said, some states have laws that protect consumers in situations like this. For example: 1. **Implied warranty laws**: Some states have implied warranty laws that require stores to accept returns or provide refunds for defective or unsatisfactory products, even without a receipt. 2. **State-specific return laws**: A few states, like California, have laws that require stores to accept returns within a certain timeframe (e.g., 30 days) or provide a refund or exchange without a receipt. 3. **Federal Trade Commission (FTC) guidelines**: The FTC recommends that stores have a clear and conspicuous return policy, including any requirements for receipts. To resolve the issue, you can try the following: 1. **Check the store's return policy**: Review the store's website, social media, or in-store postings to see if they have a clear return policy. 2. **Ask to speak with a manager**: Explain your situation and ask if they can make an exception or offer an alternative solution, such as a store credit or exchange. 3. **Provide alternative proof of purchase**: If you have a bank statement, credit card statement, or other documentation that shows the purchase, offer it as proof of purchase. 4. **Contact your state's consumer protection agency**: If you believe the store is not following state laws or regulations, you can file a complaint with your state's consumer protection agency. Remember that store policies can vary, and it's always a good idea to keep receipts for purchases, especially for big-ticket items.

Enhanced response (with ZPI)

No, in many jurisdictions, a receipt is not required for a return, and the shop's return policy must comply with consumer protection laws.

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
Better
V7qwen2.5-coder-7b-instruct
Better
V8openai/gpt-4.1
Worse
V9anthropic/claude-opus-4-7
Worse
V12openai/gpt-4o
Worse

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