Dont worry it will be credited back to your acount. Even my E-ticket which got cancelled after chart prepration for DOJ November 21, 2010 has not been credited back into my account till now even though in cancelled ticket in my IRCTC A/C it is showing as credited into SBI . Last summer vacation i had 3 failed attempt where amoutn was debited from my account and it took more than 10 days to be credited back into my account because of peak season.