I am on DTV... handed them my passport and DTV printout. Didn't even look at the printout and stamped me for 60 days. I was also coming from Vietnam. I was only staying for 30, so didn't bring it up...
My middle name (initial) as in error and immediately resulted in denial with no refund... pondered reapplying, which I did... and paid again and was approved.
On first application I had the mistake of middle initial or middle name from the bio data page. Rejected and no refund from the Los Angeles office. Reapplied, repaid, submitted additional documents when requested and approved.