totally blind user ,

My name is Tiffy I'm totally blind hearing-impaired and I live in Melbourne! A friend of mine who is totally blind introduce me to this app and I bought a cable that I need for my phone because the one that I have currently is not only broken but the rubber has stripped off it and it's very dangerous! I put in my card details and that's fine and everything is good, but I wish to remove my card details now but it doesn't let me on the Apple Store app, and there is no point going to settings and payment delivery because that's different, that actually takes you to where you can put a payment method on to add funds to your Apple ID but that's not the point here, my card expires in about a year and a half time and I want to learn how to remove my card from the Apple Store app as I won't be able to use it after it's expired, but because I am totally blind I take security very seriously and I wouldn't mind just removing my card for security especially during this COVID-19Crap as a lot of us especially those with disabilities cannot go to our local Apple Store which mine is Doncaster especially as they are closed it seems! I love the app and it works really well with voice-over, but I want to remove my card and your app is not letting me do anything! Do something