RE: need to reset App Store

Hi all, my friend isn’t replying my message. Therefore I’m turning to the community for help in order to see if I have any other options. I am unable to sign into my App Store as my friend used her Apple ID and passcode to tap into the App Store earlier this year. This time when i try updating my phone apps, the Apple ID and passcode prompts are my friend s not my original one. What can I do to reset it?