Very Disappointed

Very disappointed with the service I’m receiving from Cartrack I’ve been making payments for my tracker since February up until march using their link they sent me yet I’m receiving everyday a call from them stating I’m in default with my account I’ve been sending multiple emails with the proof but no response from their allocation department every time I call or they call they keep telling me a manager will call me back this is very frustrating and concerning the type of tracking company I’ve put myself into