was not whether they are subject to mandatory installation or not, this is complete here for example, agarai had an inherent defect. the producer or supplier of the product is obliged to return it , or if it is found to be complete and defective within a specified period of time, if it is defective, the consumer can return the product. the system has also included, we call it the warranty certificate, the warranty period in the household appliances group and some groups has increased to 24 months from 18 months to 24 months. after a few months from the notification of this regulation, we checked the process of buying a product. i came and made a purchase now and after shopping i received an sms. for example, i bought a vacuum cleaner and the tracking code was sent to me here. after the code is sent, we can go to the after-sales service community system to track our purchase, we must go to the purchased goods option and after that. it shows us the details of our purchase, for example, i choose the same vacuum cleaner product, and it shows us all the details of tracking the product id and its