Citroen UK. Would not fit new gearbox 5 speed

C3 aircross 20. 000 miles one owner

totally rubbish gearbox. car at 18 months old. trouble selecting 1st & reverse gear. Even before that always very notchy. citroen had it in under warranty. and citroen UK authorised a repair. ie rebuilt gearbox at a cost to them of £2.300. they had my car 2 months.! Drove it home seemed OK like ...