bad service

Ive got 2 tracking devices, in february i asked tracker to move my tracking device to a new vehicle, this took them six months to finalise i.a.w it was only changed in july. I had to pay for 6 monthd for a tracker in someone elses vehicle. After many, many phonecalls i cant believe that me as customer had to beg tracker to do the work but eventually it was done and put in the new vehicle and i was promised because i had to pay six months for a tracker i didnt use they would use that money to pay for re installation. Then i realise that the stoporder didnt go of my account now everybody should understand after about 19 phonecalls to find out why the stoporder doesnt go off now someone tells me theres a completely different bank account on my profile. I phone i beg i do my best but just get no help from tracker, no one wants to put u through to a authoritive figure. To my disgust i just found out that my credit record has been adversely influenced by tracker. Couls someone pls help ***