I'm teaching in an RTO and my student sent email to my manager, she doesn't like me because I'm rude and racist this is what she said in her email. The student is from India and I didn't allowed her to finish certificate IV in 3 months and I didn't allowed her she is backdating her logbook. I never speak with her rude and I was always helpful. I teaching so long and also myself coming from a multicultural background so I understand racism is a very serious issue that is not accepted especially if we teach international students. She complained before about many thing but non of them were true so this was her last card. What can I do with this allegation? Just leave it ? Obviously it hurt me because I know it's not true and I don't want this type of allegation would be used in future.