I recently done a TMPOB test and came back as a BOY result (my first pregnancy). i sent an email asking how accurate and they reasured me there's no contamination detected so should be >95%.
my ultrasound predicted a girl. TMPOB sent me a retest and this time come back as a GIRL.
they gave me the standard excuses why the first time was wrong and refunded me straight way.
they are not reliable at all and i definately wont waste my time or money again next time.