City to City - Lost luggage

good morning my name is lucky on the 5th of may my mother was traveling from Queens town eastern cape to park station Johannesburg, the bus she was travelling with got stuck in the middle of nowhere, they had to wait for another bus to be transferred to when the bus came driver happend to forget or miss placed her luggage, when bus got to park station my mom couldint find it, the driver told her to wait for the other bus that was coming, she waited the whole day till she was told to leave her contacts so that they will call her if they find it even driver gave her his numbers, we used to call him almost everyday till he stopped taking her calls, when we call the office they always tell her that they will speak to him, please assist because she really needs that laggage it contains a lot of her belongigs

Thank you