Language assessment is difficult particularly in speaking and listening. Native japanese who interviewed me is like have a colds to which I find it difficult to understand what he is saying

They emailed me to have interview at recruitment center, I did the some online form before hr interview. One week after, I got a phone call to have language assessment. And one week after, I got a call to have English assessment and video interview. They informed me to have the other hr representatives interview next day.