In short, everything else.
The pay was abysmal, despite years of service, abilities in multiple languages beyond English, and a graduate degree. In fact, the pay was so poor that only the threat of an all-out riot by staff was sufficient to raise the pay ceiling for long-term employees when the minimum wage was raised locally.
I was told that this was an entry-level position which would allow movement within the company, but in all the time I was there, virtually no one from the department was promoted to other departments, and internal positions actually went to people from other departments despite plenty of talent to choose from.
Although the job was 40+ hours a week, after several years with the company, we were told that we were not full-time employees; rather, the company used loopholes to treat us as part-time so they could send us home if there was insufficient work. As a result, we also did not receive the same benefits or even days off as salaried staff in other departments.
The department does a lot of liaising with other departments and I often had to deal with belligerent client service or project managers from other departments - making much better salaries - to explain details of their own jobs to them. Generally speaking, CSs and PMs were ill-prepared or inexperienced, but myself and my colleagues often bore the brunt of their incompetence.