90% of workplace harassment is never officially reported. Harassment of women at workplace is a serious problem and it is alarming how often it goes unreported. You need not to be polite and take formal steps to inform your Human Resources Manager, your immediate supervisor that someone is bullying you. Provide all the information and make sure that it is all documented. Keep a log of the occurrences with dates, names and an outline of description. If you see nothing happening in a reasonable time, take it to the Business Leaders or Senior Management (Directors, VP, Business Owners, etc.).