Why this isn't about your English
It's a common and understandable frustration: a fluent, well-qualified European English speaker discovers that South Korea's E-2 visa is tied to a specific list of native-speaker passport countries, and most European nationalities simply aren't on it, regardless of accent, fluency or teaching ability. This is a legal visa category rule, not a judgement about your English.
There's no accredited TEFL certificate, IELTS score, or interview performance that changes this for the standard E-2 route — it's determined by immigration policy, and policy can only be confirmed directly through the Korean embassy or consulate, since details do get updated.
