My dad's service station had a used car dealer next door. First order of the day -- change oil and brake and clutch pedal pads. They washed the engine then sprayed it with clear coat.
Bob Bellemore. A classic. Houndstooth coat, fifty brilliant white teeth a mustache, foot long cigar, and the secret got out. Buy then sell at 200 percent markup.
When something sounds too good to be true -- trust your instincts.
The real "miracle" is the incredible lubricity of them extracting cash from your wallet. Anytime you see print information along with an image of someone shouting the same info in your ear, it's a con job.