Months after I canceled a cell phone upgrade purchase with a much higher monthly charge, I discovered that the sales manager never processed the credit and cancelled the higher monthly charges. My cell phone company, who I'd been with since 1990's, investigated and corrected everything. Also, the sales manager sold me a cell phone "device protection" from Brightstar. Brightstar kept on billing me even after I cancelled it, per the sales manager's instructions. Lookup Brightstar on TrustPilot, and you'll see more of this going on. read more