Netstar tracking - No assistance received after reporting, not working tracking device since 16 september 2021

I called the customer care on 12 October 2021to report that , I am unable to track my car's location using the app as well as the tracking WhatsApp number.the customer care consultant responded by saying a technician will be dispatched to my house to check the tracking unit device, but i will receive a call prior for arrangements. I waited for that call ,until i decided to call on the 19th of October 2021,again i was prom