Don't waste your precious time with this company. Definitely they don't value the time of the candidates. I had arranged a phone call with the HR person two days before. So the day of the call I was waiting for a while when I decided to check my email in case they had contacted me. I had received an email a few minutes before, saying that they needed somebody with at least C1 English level. They didn't want to waste their time. They had had two days to let me know that, but they waited until the last moment. So I replied that email saying that they could check if my English level was good enough for themselves. I never received a reply to my email nor a phone call. Shame of them!