Same error while transferring limit! "Something went wrong. Don't worry Please try again". Take a photo of that error with another phone and on that same page there is a ❓in top right. Raise a ticket from there and upload the screenshot there. They will give some useless reply since the team is not competent enough to do anything right, they can't even design a problem-free credit card application process. Then screenshot that correspondence with PayZapp and complain to RBI that CIBIL enquiry and CRIF was done and application process is broken. You will get ₹1000 voucher and the entry deleted from your CIBIL and a phone call with apology. Repeat this until they fix this and grant you a lifetime free Pixel card after fixing the error.