I took an IQ quiz from a company on FB. I foolishly gave them my cell phone number but no credit card number AND there was no mention anytime about "billing" my Verizon account for any "service". My December billing showed around $40 in extra charges. However, and this time lucky for me, I pay my Verizon bill via Amex. I intend to dispute my Verizon bill. Amex is very tough to deal with when they go after companies with disputed billings! ha ha read full review »