Netstar tracking device replacement

I have been using Netstar for almost 7 years and I got a call that my device needs to be replaced and premiums won't be changed and I agreed. Then I received another call where I was rudely told that I need to change or else when the battery dies it's my responsibility and the premiums will be more. When I called back I was told I'm going to start a new contract and new premiums like a new customer. Receive a device that has 1 tag now and the second one I need to buy for myself. While this old device has 2 tags that came with it. They should have just told me they are canceling my current contract and I should get myself another device or contract then calling it a replacement.