yes they might be checking the genuineness of the email id and phone number.. They will send u an sms for verification and email containing ur password.. It will take two to three days or even a week.. I have suffered this when i updated my email id and contact no.. The same thing happened to me.. Moreover if u want to take print of a ticket.. U can call them and they will send u an email with ticket attachment.. But if u wish to book a ticket u will have to go to prs...