Why cant i update my free apps without having to put in my debit card info????

I have no payment method on my phone and when I go to update my free apps it asks me to put in my password and then it says ‘verification required’ I click continue and it wants me to put in a credit card before I click done or it will just say ‘verification required’ again and show the same thing.

Creating an iTunes Store, App Store, iBookstore, and Mac App Store account without a credit card