Can’t update my apps

Hello, I had a pretty annoying problem when I try and update my bank app. I got a new phone recently and tried logging into to my bank account. It told me to update the app but when I tried it made me go through two step verification. After I correctly entered my password it send a code to my “trusted phone number.” Unfortunately the phone number is not one I am aware of at all but when I enter the option “can’t use this number” it still makes me type out the full number. I have already checked and changed my trusted phone number but whenever I try to update it displays the same unknown number that does not match the one in my Apple ID. I was wondering if there was any way to fix this.