general problems of the 2004 Hyundai Santa Fe

I purchased the car used on Aug. 10, 2012. I went to gas station on Aug. 12, 2012 to fill it up with gas, and had trouble starting it afterward. I have had the same problem everytime I have put gas in it since, and it does not make a difference which gas station I go to, I have the same trouble. I even tried to leave it running one time and it ended up dying and had trouble restarting. I have to push the gas pedal all the way to the floor and hold it there to start it and keep pumping the gas pedal as I pull away from the gas pump and for several seconds after I pull away it is still trying to die. I have filled up with gas about 5 times since I purchased the vehicle and every time I have had the same problem. The only time it has a problem starting is while I am sitting at the gas pump. Once I leave there, it starts fine everytime until I stop to get gas again. I am writing this on sept. 24, 2012.

My Hyundai Santa Fe was parked with engine idling when a fire occurred in the engine compartment. Fire completely engulfed front of vehicle before fire department extinguished the blaze. Vehicle is a total loss. Cause of the fire not determined. Vehicle received periodic service one month earlier.

A 2004 Hyundai Santa Fe has developed a potential fire/explosion hazard which Hyundai has ignored after I pointed it out. Hyundai also refused to release to me the Santa Fe's "off road" capabilities. This car was purchased new. Can you help me please?.