registration to icwa

I'm Supriya n i finished my 12th std this year...........i've applied for icwa foundation registration bur due to various reasons i sent my form only yest...................i've been told that my form will reach the chennai office on monday i.e 6th coz 5th is a sunday.............n last date is ofcouse 5th.........so since 5th is a sunday is there any chance of my application being accepted on monday? ofcourse i did call the chennai office but the line is either busy or no one picks the phone..............i request any one wd even the slightest knowledge abt this to plz help me..................