Netstar tracking - Poor service

Cas 6877313-v7x5. Cas6893980-g9wo. Cas 6899512-T2P6. All this are the cases that are created for the device. And many others. It is sad cause every month they are getting paid. I have to pay them and the car while it's in the dealer. When they want customers they are very sweet when talking but come to the delivery. It's their device that dra I ns the battery instead of fixing it they disconnected the device when they are supposed to connect it it's now a problem.