Dear Customer, thank you very much for taking the time to share your feedback.
We sincerely apologize that your product is not working as expected, and we fully understand how frustrating this must be. Please send your order details and a brief description of the issue to our customer service email address: service@letemall.com. Our professional customer service team will provide you with the best solution within 24 hours, including troubleshooting guidance or a replacement if necessary. Please give us a chance to resolve this for you; thank you very much.