app store sign in

i need to update an app of mine but when the app store asks for my password, it gives my moms number. i used her phones account for icloud but then deleted all of the info when i made my own account. now i cant update the app. can anyone help??

submitted by /u/Glittering-Hyena-987
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Source: https://www.reddit.com/r/iphone/comments/1ri2ktj/app_store_sign_in/