Complaints, and why the internal process matters
Most escalations follow a process that felt like a wall.
Every provider in this sector must have an internal complaints and appeals process and inform students of external avenues. What determines whether complaints escalate is rarely the substance and usually whether the internal process felt like it engaged.
The features that make it feel like a wall are identifiable: a form in formal English, a requirement to submit in writing within a short period, no acknowledgement, long silence, and an outcome consisting of a conclusion without reasoning. Each is fixable at low cost.
Language is a specific factor here. A complaints process operating only in the language a student is still learning excludes exactly the students most likely to have something to complain about, and permitting a support person or an interpreter is a straightforward accommodation.
The internal process should also be a source of information rather than a defensive function. Complaints cluster around real problems, and a provider that reads them in aggregate finds things that no audit will surface.
It is worth noting that complaints frequently arrive through an agent rather than directly, and can be filtered on the way. Where a provider only ever hears about problems through the party who recruited the student, it is not hearing about problems with the party who recruited the student. A direct channel that students actually know about is the countermeasure.