Samuels Amanzimtoti are hopeless

Samuels Amanzimtoti - So took my Corsa bakkie in as the gears sounded odd. After a couple of days - absolutely no communication we eventually settled on a recon gear box. Since getting the bakkie back there were issues - not going into first or reverse, or jumping out of the 2 gears. Took it back in and now battling between 3rd and 5th. They are making every excuse in the book - first phone call they said it must be the linkages and will cost another 3.5k. Second phone call they said it must be the gear shift. Sick of these lame excuses and shots in the dark. Fix it right the first time.