As your mosquito racket from DMart stopped working after two weeks and the store refused replacement citing the 7-day return policy, we recommend contacting DMart Customer Support at 02268120900 / +912233400500 or emailing *customerservice@dmart.in* with your bill and product details. Clearly mention the defect and request a resolution. If no support is offered, you can file a complaint on the National Consumer Helpline portal.