Wesbank credit card

I have been trying to cancel my Wesbank credit card that I have not used for 5 years .The charges are for services and balance protection . I have tried numerous times and today called a number they smsed to me. they were unable to assist me. I was passed on twice and had to repeat my story 3 times. this is not the first time. I need someone to contact me who can cancel this credit card. I have paid these charges for years and enough is enough.