IELTS is a testing organization, as opposed to a language learning organization. We don't have direct experience in this space, but I think this is a common problem in the English-speaking countries that we work with, such as Australia, the U.K., New Zealand and Canada.
I think each country does something a bit different in the types of programs they offer people. There has been a lot of debate globally about the accepted level of language skills of people who come as refugees. I think it's a common problem that they do struggle to meet the requirements.
I think Canada has a relatively welcoming level 4. I think New Zealand has a slightly lower requirement, but everybody else's requirement is the same as or higher than Canada's.