qs pay>store registration

Actual result : so when a user is entering any wrong or invalid credentials it is moving forward to the next button
Expected result :- so when a user is entering the wrong details it should not proceed for the next button

Start by reproducing the registration flow described in the issue with invalid credentials and identify where the form decides to advance to the next button. Done means invalid or incorrect details prevent proceeding; the payload names no source file or test, so the relevant validation entry point must first be located.

Written by the indexing model from the issue text.