We got passport family travel rate from my mom Hilton to stay @ Hilton Garden in Tyson VA. Frist three days, we were pleasured with service. We have decided to stay few more days, we stopped @ front desk to see if we can extend family travel rate. Front desk staff approved for that change but when we check out they over charges us triple rate. If we know that rate to high, we will be check out. General Manager is unprofessional when we try to explain the reasons. WE WILL NEVER RECOMENT ANY ONE TO STAY THIS HOTEL LOCATION AGAIN. Thanks for your honor...