They will ask you to anticipate 50% before doing any work.
They will then say that they have done the work (LIE) but that they need the other 50% released before they can complete it (LIE)
You ask for proof, and they say they cannot provide proof because it is dangerous or whatever other reason (LIE, they don't do any work, just take the money)
They then stop replying after the remaining 50% is paid, and no work is done.
All the positives were written by them, fools deserve what they get : )
SCAM SCAM SCAM!