What will happen if i cant... - polymerase

[ArchivalUser]

i took my test date at the last day of my elligibility period. one of my friend tell me if something happened in test day and i cant complete my exam i will not have any option to take the test. and i have to register for the test again.

is it really happen? i am now scared. plz tell me if something happen like this what are the probable option? thanks.