Got a car on finance with Srandard bank we had problems with car within 2 days after purchasing having problems with dealership they sold us car that's not roadworthy and was in accident we contacted bank to cancel just to tell us they cannot cancel but

Got a car on finance with Srandard bank we had problems with car within 2 days after purchasing having problems with dealership they sold us car that's not roadworthy and was in accident we contacted bank to cancel just to tell us they cannot cancel but it financed threw them.they refusing to cancel even though proof of cat not being roadworthy and it's in cooling period but we have tje right to cancel