Discovery Bank

I am afraid that the so called private reply was yet again a useless mail telling me how I could view my account on line. Going to website I could not view the credit card account on line unless I joined the bank. I see this as a form of *********. Why do I have to join the bank in order to get to my credit card account which I dearly want to be rid of? I am objecting to the fact that Discovery Bank will not accept the fact that I want to cancel the card. It is fully paid up and I refuse to pay for the fees they are charging as if I am using the card. I also do not want to phone them as I have spent too much on calls without the desired outcome ie cancelling the credit card with immediate effect. I requested it on the 23 May2020 and again on the 25 June 2020 to no avail. I wish they would listen to the telephone conversations I had on those occasions. What am I to do???