Netflix complaint: Unable to delete saved Card details from Netflix

I have availed Netflix subscription with lot of hope during the lockdown period that all new movies will be available with such huge amount per month subscription but totally dissapointed that there are most of the recent new movies were unavailable. That was another matter although my complain is that I have used my Credit card for making the payment. I do not want to continue the Netflix subscription anymore which was ended on 24-April-2020 but I could not delete my card details from Netflix. There is no app where I can not delete my saved details but netflix only changing option available.I want to remove my saved card details so that in future it is not visible to my account.Please do the needful to remove my saved card details and deactivate my Netflix account.Although my experience with Netflix is very regretful I will wait for positive response from your part.