Fradulent order submitted

On the 2nd October 2019 I received an sms from avon that my order was invoiced (the order that I did not placed) I immediately phone avon call centre and also send email to *** to request for reversal and not to dispatch anything because I did not place the order. The consultant confirm that someone by the name of Michelle placed the order on my behalf , I was very confused how could someone use my account without my permission because that is *****. I have not received any feedback as yet and my account is still not yet credited or reversed .