First of all, make 1000% sure the fan is defective and its not something else that is causing the overheat. To ways. 1st check is to bring the car up to temp so that the clutch should be engaged, then switch off the car, and try to spin the fan by hand, it should have good resistance, and should not spin freely, maximum 1/4 to 1/2 turn and should stop. You should not get a good 1 or 1.5 rotation or more.
Second is a bit risky, so do at your own risk. Roll up a good wad of newspaper or thick magazine and with the engine running at temp. Try to slowly put the roll of newspaper in the fan, after a few taps if you are able to successfully stop the fan from spinning while the engine is still running, then your clutch is toast.
The video uses only a single sheet, my advice is to get a good thick-ish roll
Second Barry is, right escalate the matter up on all levels, write to Habtoor, Mitsubishi Middle East AND Mitsubishi Japan. I had a friend who had great success in doing so after the dealer refused to fix a few issues on his ride making all sorts of excuses as to why. In the end he got an entire new dashboard, 4 rims and tyres fitted free of cost and from then onwards, he was marked as a VIP customer in the dealers system and whatever he wanted he got ASAP. But the car was under warranty then. But no harm in trying.
Naming and shaming with the advent of new cyber laws can actually backfire and get you in trouble for libel and defamation instead, so I'd be very careful what I say on a public forum.