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EXACTLY! So I read this response and CLEARLY understand what other's are saying about this particular question!
"Thumbtack! And only Thumbtack knows whether or not the "customer" is "legit" or shall I say "real"!
NO! NO! NO! We had to get the BBB involved in order to get our monies back from another "scam operator" doing this same practice!
THIS IS WHERE THE PROBLEM IS!
THIS IS CALLED "GHOST FISHING"!
You as a "PRO" have NO TRUE WAY OF KNOWING WHETHER OR NOT YOU ARE BEING DUPED! My advice... RUN! AND RUN FAST!