Tank Assembly problems of the 2006 Subaru Forester

This incident first occurred shortly after my last oil change at about 38,000 miles. During four of the last eight times I have refueled my 2006 Subaru Forester, which now has about 40,000 miles, the filling pump has not automatically shut off when my gas tank was full. As a result, gasoline overflowed from my fuel tank and spilled out. Fortunately, no fire has resulted, and I have managed to Dodge the spray. However, I am concerned about spilling gasoline, and I fear that I will one day spill gasoline on myself. This has happened at four different gas stations over the past month, which leads me to believe that the problem could be with my car. The gas stations were taylor #80 in amarillo, TX; exxon in childress, TX; love's in encinal, TX; and shell at the corner of calton and san dario in laredo, TX, and the incidents occurred on may 9, may 19, June 3, and June 5, respectively. Again, I am concerned about the possibility of fire, chemical injury, and waste of money. I have not contacted Subaru as of yet because I was uncertain whether the problem was with my vehicle or the gas stations. I will soon contact a Subaru dealership about this matter. Thank you for considering my report.