I'm very sorry to hear that has happened. In order for me to help you most accurately, please provide the complete model code for this device.
Just purchased a 32" F5500 Samsung smart TV. I want to mount it using a swing arm bracket which uses the VESA hole mounts. The holes match the bracket but they are too large for the mounting screws. It appears that there has to be some type of bushing that fits into the mounting holes that will accept the regular screws that came with the bracket. I cannot find the bushings on Samsung and Best Buy is stumped as well.