Bad costumers service

I was retrenced on the 15 August 2020 due to covid,because in the mines at that stage was only allowed to have 70% capacity underground,so Mix Telematics still deducted the payment for the tracking unit inside my wife's car,i try to phone them , unsuccessful y but e-mail them to stop the unit,and want to cancel the contract because I was retrenced and can not afford to pay for the tracking anymore,but still no response from them so this went in arears and they deactivated my tracking unit, October they debited me twice,but was still in arears,unit still deactivated so in case of emergancy how we going to be helped ,my wifes car she be stranded aside the road and incase of hijacking ,today they send me a bill of R1800 and said idf i want to cansell this is what i must pay,if i cant even affort to pay R200pm how they expect me to pay R1800 ,again the lady said she out me through to manager,but no success,so she said that her finansial dept said theire is no such policy or help in case of retrencement,maybe its yust me but how are they thinkng,no work ,no pay i did not want to cansell by choice,i was RETRENCED i do not want to be in arears ,but they yust ignored my reuest and keep adding and deducting , i send them my retrenchement letter three times now with my sequistration letter from high court. Never in my life will i refer someone to this company,im also going to the ombudsman with this as well if its not sorted .