Irctc — irctc website suddenly not recognising user id and password

dear sir, each time i am trying to open my irctc ticketing account with existing user id and password since last 4 days ,iam unable to do so.all this happened after irctc asked for my mobile no.they have sent a mobile password but not an email verification password.despite sending 4 mails to [protected]@eticket.irctc.co.in,iam not getting any response.kindly help in getting irctc to reopen my account