In 2015 Gaba staff deleted information on the system about clients who had harassed female instructors. An instructor brought up the issue with the company several times as new instructors were left with no warning, and no knowledge that they were in their rights to have the student blocked. No action were taken. Information about this were finally entered in the system by the instructor so female instructors would be aware and could prepare themselves. The comments were repeatedly deleted and the instructor was given a written warning by the company and told not to do it again. The union protested this. Later in 2015 an instructor who warned a new instructor about a client who had harassed female instructors in the past was disciplined by the company, which the union also protested.