Tomato Damsel F1 Seed

I have to say that I am highly disappointed in the tomato seeds I purchased. I purchased 4 different varieties of tomatoes from your company. I planted all 4 varieties in starter cups of 12 seeds each with Miracle grow soil. The plants grew tall and thin to about 4" each and then the stem became weak. They fell over and died. I did this twice with the same result. I will not be spending any more money with your company when I can purchase the plants at a greenhouse for the same cost!! My 2 cents..