Pennsylvania Burial Question

My Mother-in-law’s ashes were buried one week ago, in Delaware County, Pennsylvania. The Funeral Director was supposed to supply a small portion of the ashes to her four children. Somewhere along the line, this step was not attended to, and my Mother-in-law was buried. If the family desperately wanted this memento of their Mother, whom should handle the financial responsibility of breaking the soil, and reinterment? I am thinking the Funeral Director, as they should be overseeing all these steps with care, mostly as they are supposed to be the professionals? Or would the Family be responsible, in an attempt to claim a small portion of their Mother?