I want a REPLACEMENT VEHICLE TODAY

I have now been complaining for 3 months bought a vehicle with a gearbox issue asekd WesBank for a cancelation in given time. They arranged a repair but yet they did not comply with repair issue started up again vehicle now 2 months 1 week later dealership only willing to pay half of repair 5 weeks later 1st promise vehicle will be repaired by 15 they did not keep promise yesterday dealership fixing gearbox confirmed vehicle fixed gearbox correct tested vehicle would have been delivered today this morning no vehicle phoned all of a sudden again noise in gearbox we told WesBank something fishy going on when vehicle has to be delivered they cancel with a excuse have been renting work bakkie per kilo meter pay but Monday company took vehicle back I bought this vehicle to go to work and back staying 120 km away no means of transportation meaning my job is now at risk I am telling them today I want my vehicle fixed and right today or I want a replacement vehicle I am paying for something I don't own I told them vehicle had a gearbox issue cancell sale with in given time with consumers act I want A REPLACEMENT VEHICLE TODAY I WANT A ANSWER TODAY