CARTRACK constant HARRASMENT of customers

Cartrack has been constantly harrasing me with phonecalls. On some days I will receive 3 phonecalls, some will just ring and drop when answered. If there is someone on the line they have no idea I have spoken to them. When asking to speak to a Manager they are not available. This is ridiculous, please leave me the **** alone and stop calling me!!! Today, once again a ''Sibongile'' phoned, I answered and asked to be put through to a Manager, her reply is that no one is available. This is pathetic.