A relative of mine is going to work in Congo with some local people, but they all signed tourist cards. Will the documents become illegal immigrants when they expire? Is it a scam?

It's best to go to this country with big domestic companies. If small companies are afraid of insecurity and go out to work with tourist visas, the main problem is that when they pass through customs or immigration, they are asked what they are doing in Congo. Never mention anything related to their work, otherwise they may be repatriated. The tourist signing period can be renewed, and those who intend to stay in Congo before the expiration must renew it in time. In addition, the staff of government agencies there are inefficient.

If you don't have a certificate, you can run landing visa, but you need a local invitation letter. The gold situation in Congo is not particularly stable. If you go there, don't go out alone.

Generally, large state-owned enterprises that go there are well treated. I heard that there is a hydropower company or a road and bridge in China (I can't remember), and I can get nearly 20W if I stay there permanently for one year. I don't know if it's true or not.