Unauthorised Insurance Debit Order

I received a request to provide Absa with proof of insurance on my vehicle. I emailed my policy document to [Email Removed] on the 28 April 2015, the email was received and read by someone from the same department & I also received an automatic response from the same email address thanking me for sending proof insurance. On 22/06/2015 I received an sms advising that Absa has not received proof of insurance and that they have debited me with an amount of R1046.13 even after I had received an automatic response from them on 28/04/2015.On 07/07/2015 I resent my policy document, proof of previous email dated 28/04/2015, read receipt dated 28/04/2015 & automatic response dated 28/04/2015 requesting for an explanation, cancellation & refund of the unauthorised debit taken from my account. To date I still haven't received any response from Absa, instead a Hollard policy document has posted to me as proof that they will continue to debit my account whether I like it or not. I want nothing to do with Hollard and I will not be bul**** into doing business with them.