SIM COVERS!!

I have sim cover with Cell C, and I used the service in Sept since I lost my 2 sim cards that are under contract, I called in through to the insurance dept and I was assisted to do the sim swaps and was told that there will be an automatic charge that will be added on my debit order bill in October, but I shouldn't worry about it as i would be reversed, so immediately after the October bill I should send an email to *** which I did, but instead of being helped now I am told to send proof that I paid for the 2 sims, they want my statements and everything, I sent everything but still more is needed, like where will I get proof that I paid where the the sim deductions were added on my bill, like doesn't consultants communicate, now WHAT I WANT IS FOR YOU TO CANCEL ALL THE SIM COVERS THAT I HAVE AS IT IS VERY CLEAR THAT I WON'T BE REIMBURSED MY MONEY, PLEASE CANCEL THE COVERS ASAP!!!!