Other Fuel System Hoses Lines/piping, And Fittings problems of the 2007 Kia Motor Spectra

Vehicle will stall after gas tank is filled. Gas fumes can be smelled. Car can stall while idling or at high rate of speed. When it stalls power steering is lost, posing a serious safety risk. The kia dealership tried to tell me it was my fault - that I over filled the gas tank. From 30 other reports I found on line, the tank orvr is not sealing completely and it allows fuel to seep into the charcoal canister and vacuumed all the wya to the intake via the purge control solenoid valve. Dealership's third attempt at a repair includes: replacing fuel tank, evap canister, vent solenoid, purge flow solenoid, and canister filter, with parts and labor totaling over $1000. I have emailed and called kia headquarters but they will do nothing. How can so many people have this same problem - a major safety issue - and kia just ignores it. Says alot about a company.