The organization of Metlife is disgusting and sends people in circles. There is no definitive number to contact them...there are a hundred and you will get all the wrong ones unless you check back with the original employer to what contact number they may have.
To prep blackberries for making a puree: Heat the blackberries, fresh or thawed, in a saucepan over medium heat. Add 1 teaspoon of sugar and 1 teaspoon of lemon juice for every 1 cup of berries, fresh or thawed. Heat to warm the berries through, stirring as needed. Blackberry puree can be made with or without seeds. One cup of fresh blackberries produces 1/2 cup of puree, while 1 cup of thawed berries produce 3/4 cup of puree. Store the puree, seeded or seedless, in an airtight container or jar in the fridge for three to five days.
In a blender, combine berries, sugar, and lemon juice; blend until smooth. Pour mixture through a fine-mesh sieve, pressing with a rubber spatula to push through. Discard seeds; transfer 1/2 cup berry puree to a small bowl. Cover and refrigerate; reserve for topping. In a large bowl, combine cream and vanilla; whip until stiff peaks form. Gently fold remaining berry puree into cream. Spoon mixture into custard cups. Cover loosely and refrigerate 1 hour (or up to overnight).