Consumers are getting ripped off during rough economic times. Best Buy Nevada is charging 6% so called "Federal Mandated Tax" on all new mobile phone purchases in addition to 8% sales tax. My daughter went in to upgrade her phone which was on sale for $49.99, she had a $50.00 gift card to go towards the phone, so all she would've paid was the 8% sales tax on the $49.99. Her bill at the end of everything came out to be over $40+, when she asked the manager why it was so high, he told her that it's Nevada Law to charge that 6% Federal Mandated Tax on all mobile purchases and not on the sales price but on the retail price ($700). I called Sprint (our carrier) in Nevada and asked if there was such law and if they charge an addtional 6% on all mobile purchases and they said they DO NOT!! I googled this law and couldn't find anything about it except for other complaints. What I read is that Best Buy Corporate already know of this problem and suppose to have fixed it, but they are still doing it.  We are having a hard time as it is so we figure we can afford paying $4 (tax amount on $49.99) on a new cell phone but we was wrong!!