CFA Mock Exam Problem

I just had a problem with the CFA mock exam. After finishing the first question, I think I clicked quit exam buttom as opposed to the Next button. Now the test center thinks I am done, and I can’t restart the exam. NOw I have a score of 3% (the one question I answered) Anyone else have the problem? I am thinking about buying the second mock exam so not to waste my time. And call CFA tomorrow either get a refund or allow me to restart the exam on a later date. Any thoughts? Thanks.