Purchased a Bus Ticket

A bus ticket was purchased on the 24th September 2015 at 16h20 but the ticket was purchased for the 26th September 2015 for the 22h00 bus but when we checked the ticket we has seen that it was booked for the same night and when we wanted to go back to shoprite it was too late as they were closed so we returned to shoprite on the 25th September 2015 to rectify the mistake they told us they cannot assist and that we lost our money they had called the customer service for Inter-Cape and they said there is nothing they can do as the bus had left already and i was pushed from pillar to post trying to have this sorted but to no avail as they kept saying there is nothign they can do i lost my money and now cannot purchase a new ticket to get home to Durban as they do not to rectify the dates or refund me and i feel this is unacceptable as it was not my mistake i do not issue or work on there systems i know mistakes are made but i feel they need to fix what they did wrong as they issued me the bus tickets with the wrong dates and i really need this sorted out today thanks.