Very disappointed customer

Soo disappointed with the service i received from Intercape. I bought a ticket at around 14h00, and phoned the call centre at 18h56 to find out if i can cancel it. The person i spoke told me i can. But she did not offer to cancel it. I then went to intercape this morning and was told i cant cancel,they can only give me a voucher because i was suppose to cancel 48hours before depature time. I understand that. But i bought the ticket less than 48hours before my depature time. The worst part of it all they still penalise you with 25% even though they give a voucher. I am avery loyal customer,i only travel with intercape, and this is what tgey do to me. And all the "managers" at their branches ccan't even solve a problem, they are just sales assistance coz thats all they know to sell tickets.