Ca Final exam center

Sir ,pls pls pls help,HOW TO KNOW WHETHER MY CENTER CHANGED AFTER HALL TICKET/ADMIT CARD ISSUED my mobile number is deactivated by company bcoz I didn't recharged since year as i was using another number,idea store said number is deactivated permanently,my email id I tried to change on icai exam site on my profile ,it too failed and still appears un-verified,how do I confirm that my center remained same or chamged?pls help,even though my center is yet not in red zone ,its green zone