Hi martindart,
Good advice!
I have read of a few instances like this where the Consulate has requested to see the petitioners credit card statements. Thankfully, I've purchased, and still purchase all of my tickets with my own credit card and then I am reimbursed by my company in Vietnam. I'll include credit card statements with the evidence my fiancee takes for her interview in July.
STL_HCMC
QUOTE(martindart @ Jun 22 2006, 11:55 AM)

One more VERY important thing. My friend purchased my (June 1, 2004) airline ticket for me while he was in China Town I later paid him back. The Consulate did not like this... even though my name was on the ticket and itinerary they returned my petition for this reason also. I just reviewed the consulate report. So, make sure you have paid your airline ticket with a credit card in your name. I have my own but he (my buddy) was there in China Town and I asked him to get me a ticket, it was cheaper. Had I known it would haunt me later I'd never done it.