Cartrack failed to help

On the 15 January 2020 my car was missing ,I then called the cartrack to trace my car around 9pm ,their respond was they will call me once they had traced the car ,two hours later I called them they told me that they will came back to me of which they never came back to me until the morning. I called them again they told me the vey same answer that they can not trace my car, then I went to the police station to open a case of a missing car here is the case no180/1/2020 the police assisted me to find the car I also used my money to find the whereabouts of the car ,I did what I pay them to do and the car was recovered without the helping me it was all my effort, I then cancelled the contract with them and I reversed the premiums of two months because they had failed to assist me in times of need, Now they are saying that I owe them the company is debiting and it keeps bouncing because the are no funds and it is affecting me when the debit order bounce it charges me double can you please intervene ,they are frustrating me I paid them every month , I want them to refund me all the charges of the bank and the money that I used to recover my car. Thank you in advance