During working hours on business days from 9:00 AM to 18:00, SODI shall promise to respond no more than 8 hours. Services are not available on statutory holidays. SODI shall provide technical support through various channels, including SODI's official website, telephone, and social media. We sincerely appreciate your trust and support. If you have any feedback or suggestions regarding our services, please feel free to contact us. We will make every effort to constantly deliver top-notch service quality and provide a superior service experience to every customer.

SODI has established a comprehensive after-sales complaint management system to collect customer complaints and suggestions through multiple channels. SODI commits to providing an initial response within 24 hours and resolving complaints or providing solutions within 3 to 5 working days.

Customers can submit after-sales complaints and suggestions through SODI's official website, telephone, email, social media, and other available channels. We will thoroughly review and track customer feedback, and take appropriate actions to improve our services. Customer satisfaction surveys and quarterly evaluations of after-sales service quality are conducted.

SODI promises to keep every complaint and suggestion confidential and only use them for service quality improvement and employee training after getting the customer's authorization. After the complaint is resolved, customers can participate in a satisfaction survey and evaluation regarding the handling outcome.