QA means Quality Assurance.
Your QA (Quality Analyst) is a senior designer responsible for quality control.
Their goal is to make sure your requested tasks and your designs match.
They do that by double-checking your designer's output and certifying that everything is okay to be delivered to you.
Think of them as a "safety net", an extra pair of eyes so you can always get premium designs.
They're only human, so if they let something slide, let your account manager know and they'll adjust the course.
