the problem was that they were overcharging, not the my credit line was too low (although it is too low, but whatever). i wouldnt have known until checkout that they screwed me on the rate (they initially wanted to charge me around 950 for my 3 night stay, then around 830, but it was only supposed to be like 640). additionally, they said that my cc was declined when they ran it before i got there, but when i asked amex, they said that they didnt have any requested authorizations.