Hi, why my facebook account doesn't open?

it was temporarily suspended as wanted to change my E mail id associated with FB account but later by mistake i clicked on 'this is not done by me' on link sent by FB, after doing all d formalities, i was asked to answer d security question but i don't know why it does not match, they give no other option to verify my account, however they say your hourly limit has been reached but no other chance is given , it has gone too long, 2 times i have tried to answer, can't they verify me with some other method, wot to do ?