2015 Gearbox code & gear ratios

Hi all, just acquired a 2015 C3 VTR+ 1.4 HDI 5 speed - it was supposed to have just had new clutch fitted but think someone might have changed the gearbox & put the wrong one in as it seems high revving for speed, don't really notice it till you get to about 60mph where it's hitting 3000rpm in 5th gear. Could anyone tell me what revs it should be doing per speed & what gearbox code it should have fitted in it as well as where code is located please - any help greatly appreciated - Thanks all.

Hi

F: Gearbox identification reference and factory serial no.

You should have an MA5 gearbox fitted but I don't have information about the gear ratios for those models.

Which size wheel and tyre combination do you have?

Hi, thanks for reply, Couldn't see any gearbox code on gearbox from top will try looking from underside when I can get it jacked up. Tyre size is 185/65/15 which I believe to be standard size for model/year.
Car is terrible at speeds 60 mph upwards as it's so high revving - engine sounds like it's going much faster & being thrashed
I had the old C3 (2003 1.4 hdi) which was nothing like this which is why I believe it may have wrong gearbox in it as know they are prone to whining sometimes. Didn't pick up this problem when buying car as road test was in residential area so max speed limit was 40mph.