Service
After-sale

After-Sales Service Commitment Letter

Dear Customers,


Thank you for choosing our products! In order to provide you with a more reassuring and high-quality user experience, we hereby solemnly promise you the following after-sales service content:

I. Quality Assurance

(A) Certification and Compliance

  1. We strictly control the product quality. All products on the market fully comply with the CE safety standards, follow the ISO9001:2015 quality management system standards, and are manufactured and tested in accordance with various inspection specifications formed by referring to the "Zhejiang Made Group Standards", ensuring that every product has excellent quality from its birth.

  2. For the core mechanical components of the products, such as the lock cylinders and transmission devices, we provide you with an extended warranty service of up to 3 years. During the warranty period, if it is detected that the damage is not caused by human factors, we will replace the relevant components for you free of charge to fully ensure the stable operation of the products.

(B) Warranty Scope

  1. From the date of product delivery, you will enjoy a global warranty period of 12 months. During this period, if the product has problems caused by design, material or process defects, it is within our warranty scope.

  2. During the warranty period, once the product needs to be repaired, we will not only replace the required parts for you free of charge, but also bear all the costs of the repair service, including international logistics fees.

II. Service Commitment

(A) Global Response Network

  1. We provide 7×24-hour multilingual support (English/Spanish/Arabic).

    • For routine consultations, we will provide solutions via email/phone within 15 minutes.

(B) Technical Support

  1. We provide free installation videos, multilingual electronic manuals and remote video diagnosis services.

(C) Extended Service

  1. We will supply original factory parts at cost price for life.

III. Exemption Clauses

The following situations will be subject to paid services:


  1. Damage caused by unauthorized modification, incorrect installation or mixed use with incompatible systems.

  2. Failures caused by irresistible factors such as natural disasters and chemical corrosion.

  3. Failure to use or maintain the product as required in the instruction manual.

IV. Transparency and Sustainability

(A) Service Tracking

  1. In December of each year, we will conduct a "Customer Satisfaction Survey" for customers, make PDCA improvements according to the results, and feedback the results to customers.

(B) Environmental Protection Responsibility

  1. We provide a free environmental protection recycling program (in line with RoHS certification).

  2. We participate in the "Carbon Neutrality Partnership" project for improvement.

Contact Information

  1. Global Service Hotline: +86-159-9999-7999 | Email: sales@loto-beeyi.com

  2. Local Service Outlet Inquiry: www.loto-beeyi.com


This commitment letter is finally interpreted by our company, and the updated version shall prevail as announced on the official website.