title: UPS Rates API gives low price
body: <p>I have a PHP/XML script to get rate quotes from UPS. I've set it up according to the UPS Rates documentation and it seems to work, but the prices I get are consistently lower (by 10-20%) than what I get if I login to UPS and enter the same info/service etc.
  Without putting the whole XML request here, I am passing:</p>
  
  <p>Shipper postal, country, account number<br>
  Shipto postal, country<br>
  shipfrom postal, country<br>
  Service code<br>
  Payment Information - prepaid<br>
  Packagingtype code<br>
  Dimensions - length, width, height<br>
  weight</p>
  
  <p>My question is - has anyone seen this and figured out a solution? I'm guessing there's a parameter that defaults differently on the UPS site from the API - but I can't find it.</p>