System error - Integrity Advocate

If I could give a a half star rating I would, I must say I am highly disappointed and frustrated with NOSA, I recently wrote my SAMTRAC and told I had passed as they would round off the percentage, today I am told I must rewrite the exam after being told my session was not recorded yet it was a system error on their side. I must now pay myself for a rewrite yet the error sits with NOSA and there's nothing they can do because it did not record. Its so heart breaking for one to have failed then told you have passed and then again told I must rewrite because their system did not record. I made sure to put my camera on and do everything the correct way.