Turture of grieving widow

My Father In Law passed away Aug 2020. Standard Bank has been handling the estate as they were selected as the executors. My Mother in law has been left in the dark more than once due to non payment of her services and her medical aid has been suspended leaving her without her chronic medication. Standard Bank refuse to bring the estate to a close and allow my mother in law some dignity to mourn the loss of her husband. Instead they don't respond to phone calls or emails from either family member and they have been holding her funds back and refuse to pay any services. The Estate department should employ staff who wish to assist grieving individuals not torture them and leave their clients without food, electricity or medication. We will be taking the matter further.