I personally was with my boyfriend when he purchased phones for himself & teenage son @ the Sprint PCS kiosk in the Antelope Valley Mall in Palmdale, CA. He paid close to $400 for both phones, and was told he would get a carrying case and bluetooth headset for free as a promotion, and would receive about $150 in rebates via mail.
About a month later he noticed his bill had an unexpected $400 increase! He called customer service and they explained to him that he was being billed an additional $400 for the phones WHICH HE HAD ALREADY PAYED FOR AT THE KIOSK!!!
So basically this nice young lady who had assisted us turned out to be a crook whom pocked all the money! After the fact an employee at another wireless carrier kiosk said we hadn't been the first victims, and it's hard to sort all this out because Sprint allows various people/entities ownership/managment of their stores...even when you call them it seems as if each customer service agent is running their own private business with their own set of rules & regulations!
If you do purchase anything at a kiosk keep every single receipt.
He reported to the fraud department and is now scrambling around in search of the receipt!