我找到一个:
http://www.complaintsboard.com/complaints/solow-and-send-me-mobile-c257835.html
SendMe and SoLow Mobile Services obtains a person's cell phone number in this manner:
They advertise a free IQ test. After taking the test they ask for your cell phone number to text the results of the IQ test. BAMMMM! They've got your phone number and immediately subscribe you to content. They ask you to text a message "STOP" to discontinue service. I ignored the messages as SPAM. A charge of $9.99 appears on my bill.
It seems that one is deceived into submitting a cell phone number to a content provide who immediately begins billing you $9.99 a month with these online "tests".
By the way, I never got my IQ test result. I can see now that I must be a total idiot.