Charged for Inssurance without consent (Partner Protection)

Edgars you have been charging me for Partner Protection insurance for the last 17 years, after noticing 2 deductions, 1 for Account protection and the other for partner protection, I queried this with Edgars, you agreed to call and provide me with proof of consent where I agreed to this insurance. Be mindful that I was not married at the time this partner protection was added. I recieved an email from Roberta Henry 13th Nov, this was her response Good day, In response to your enquiry with Edcon kindly note that the Partner Protection Plan has been cancelled as requested however we are unable to reverse the charges. The insurance has been active on the account for the past 17 years and we have not received any communication regarding a dispute. Monthly statements were also been sent which shows all transactions on the account. Should you require further information, please do not hesitate to contact us on the number below. The cost calculated since then is estimated around +-R7000, why am I told by this person that charges cannot be reversed? Surely if you cannot reverse the charges then you must credit my account. Please CALL ME BACK TO DISCUSS , DO NOT EMAIL ME as I'm not able to communicate back to you via email due to the mailbox sending automatic reply that it is unattended.