I am paying for another non existant customers bill

I would like to lodge a complaint as I have car inaurance with my way and the day I started with premiums an additional 2 payments was taken from my account under life cover in which I never signed up for I called the contact centre they insist that I have signed up for life so after a few conversations thry cancelled the policy and I have reversed the payments at the bank which cost me R40 each reversal. The next month same thing happened and we had to end up reversing it again another R80 for 2 reversals so finally the one was cancelled however we were left with another life debit that wasnt cancelled and aparently as the agent explained that my bank details was given to them by another person who they cannot get ahold of and that we were paying their bill for tholis past few months this is ******* if not an agent error they cannot do this.So up until today we have been debited fot car insurance and life cover for someone they cannot get ahold of this is making me sick as I have to gobto the bank all the time to do a reversal and it does affect yes my credit file! I want full compensation for the distraught ive veen through we dont budget for this money to go off and it had put us in a bad situation I want all my charges paid back plus compensation.How can we pay someone elses insurance and it cannot be cancelled because theu cannot get ahold of this person???? I need someone to deal with this case as a matter of urgency I am more than willing to broadcast this to other aocial media platforms and I will take this further!