Clientelle customer service pathetic and performing ***** on my account

Clientelle has decided that they want to add a policy on my name without my consent or knowledge, they further also got some access to my bank account details and authorizesd a debit order on my account for the amount of R250 and when they realized they not getting their money they further authenticated a debit check mandate... Upon speaking to them they told me that I porobaly spoke to a broker at a mall or a broker came to see me, I told them I am a stay at home mother and I have never ever had any affiliation with clientell let alone speak to one of their brokers.... They told me to go and get an affidavit to prove this so they can investigate and deal with this particular broker and when I refused to go and queue for an affidavit so that they can do their investigation as I am the victim here and I don't see why I need to run around in order to help their investigation as they have gone into my as count unauthorized, caused my bank to charge me fees for this transaction and then I need to still prove my innocence! I was told that they can do nothing to help me! I think this was utterly disgusting and disgraceful! This is exactly why I did not even choose clientell to start with and they they showed me that they will force themselves into my personal bank account without my knowledge and no one is being held accountable for it.