退款政策

Refund and Return Policy

At Calvin Rig, we specialize in high-performance Bitcoin mining hardware. Due to the specialized nature of ASIC mining equipment and the high volatility of the cryptocurrency market, our policy is designed to be fair, transparent, and strictly enforced to protect both our business and our community of miners.

1. Quality Assurance & Pre-Shipment Verification

To guarantee that you receive a 100% functional Bitcoin solo miner, we implement a strict Pre-Shipment Verification process based on your selected edition:

  • Standard Edition: Before dispatch, the hardware is powered on to verify operational status. A verification video is recorded as proof of functionality. 
  • Premium Edition: The hardware undergoes a full stress test to ensure it reaches the advertised hashrate (e.g., 12 TH/s). Our technicians will pre-configure the device with your designated BTC Wallet Address and up to two specific Mining Pools. A detailed video demonstrating the full hashrate and successful pool connection will be provided via WhatsApp or Email. Orders are only dispatched once this verification is documented.

2. 14-Day Return Policy for Unopened Items

We accept returns within 14 days of delivery under strict conditions. Given the sensitive nature of computing hardware: 

  • Condition: The item must remain strictly unopened, with the original factory seals and packaging intact.
  • Restocking Fee: A 25% restocking and administrative fee will be deducted from the refund amount.
  • Shipping Costs: The buyer is 100% responsible for all return shipping costs to our facility in Hong Kong. Original shipping charges are non-refundable.
  • Customs Abandonment (No Refunds): If a package is returned or destroyed by local authorities because the buyer refuses to pay destination import duties or VAT, this does NOT qualify for a return. Zero refunds will be issued in such cases.

3. Dead on Arrival (DOA) & Shipping Damage

Every unit is verified via video before dispatch; therefore, any DOA issue is typically related to transit damage.

  • Reporting: You must report any damage to support@calvinrig.com within 48 hours of receipt.
  • Evidence: Please provide your order number along with photo/video evidence of the hardware defect and the damaged packaging.
  • Resolution: Once verified, we will arrange for a replacement or repair. The buyer covers return shipping to us; we cover the shipping cost of the replacement unit back to you.

4. Limited Hardware Warranty (Tier & Model Dependent)

We provide limited hardware warranties for our physical computing nodes. The exact duration and service network (e.g., 3-Month Local Warranty vs. 12-Month Factory Warranty) depend strictly on the specific product model and the Service Tier (Standard or Premium Edition) selected at the time of purchase. Please refer to the specific product page for your exact coverage details.

  • Coverage (Labor & Diagnosis): This warranty covers the labor and diagnostic fees required to troubleshoot and repair manufacturer defects under normal operating conditions.
  • Parts Exclusion: The cost of any replacement parts (e.g., ASIC chips, control boards, screens, or fans) is excluded from our local warranty and will be invoiced to the customer separately, unless covered under the manufacturer's original factory warranty.
  • Exclusions: The warranty is strictly voided by overclocking, installation of custom/third-party firmware, improper power supply/voltage, physical damage, water damage, or unauthorized disassembly.
  • Shipping & Logistics Fees: Customers are responsible for the two-way shipping costs to the designated repair center (Local or Asian facility). Any cross-border administrative fees (such as the US$150 VIP Logistics Concierge fee for Asian factory routing) will be applied or waived strictly based on the Service Tier purchased, as stated on the product page.

5. Technical Support & Setup Assistance

We want your mining journey to be successful. Every purchase includes access to our technical support. If you encounter difficulties setting up your Bitcoin Solo Miner, we offer remote consultations to ensure your equipment is hashing correctly and connected to your chosen pools.

6. Lost or Stolen Packages [cite: 27]

All international orders include end-to-end tracking. If a package is officially confirmed lost by the carrier (e.g., UPS, FedEx, DHL), we will file a claim and arrange for a replacement unit to be sent.

7. Chargeback & Dispute Policy [cite: 29]

We are committed to resolving all technical issues through our support channels. Initiating a bank chargeback without prior communication is considered "friendly fraud" and a violation of our Terms of Service. We will vigorously dispute unwarranted chargebacks by providing your specific pre-shipment verification videos, delivery logs, and IP data to the payment processors.