Other Fuel System Tank Filling/charging problems of the 2004 Kia Motor Amanti

While filling gas to full level, the gas spills out inside wheel well and onto ground (1/2 to 2 cups) when tank gets about 3/4 full, the gas stops leaking once I stop putting gas into the tank. The car was taken to a kia dealership on 10/17/2006 with 37,053 miles on the car. The dealer determined that there was an internal failure to the orvr valve and it flooded out the purge system. The valve assembly, filter assembly, canister assembly, canister close, and 2 way valve were replaced. The problem recurred again in October, 2008 and the car was taken to the kia dealership on 11/06/2008 with 58,079 miles on car. The same diagnosis and similar parts were replaced. In may, 2012, with 88,760 miles, I am experiencing the same problem since the car is out of warranty, kia will not assist in any correction unless I pay dealership for diagnosis. My issue is that I feel they have a system problem, since the same problem has occurred 3 times and corrective action by kia corrected the problem for 20 to 30k miles but t was not a permanent fix. I feel that I am no way causing this problem since I don't top off during the filling process. The consumer should not have to fix this type of problem every 20 to 30k miles and it is a danger to the consumer and anyone else at the gas station who ignite a fire from a cigarette or static electricity.