Hi Matt,
If its just wear, I'd say get hold of some leather paint and do it yourself.
You'll be surprised at how easy it is to get right, and I mean DEAD right straight away.
If that is, it's just scuffing and creasing that has exposed the 'suede' under the colour coat of the leather.
I've used two products on two of my cars.
Gliptone Scuffmaster (see below)
https://www.liquidleather.co.uk/leather-dyes-c48/scuffmaster-m36
You can get the Scuffmaster from John at Bespoke Leathering (he does a lot of the interior trimming/refurbs on Car SOS)
He supplied me with an exact colour match for my Ocean Blue leather, but the pack comes with tints so you can go lighter or darker, and a mattifier and gloss enhancer if you need it duller or shinier.
Also worth trying LTT Auto Leather Recolour from LTT up in York I think. I leather painted my BMW/MINI seat bolsters with this.
https://www.lttleathercare.com/product/auto-leather-recolour-2/
Sorry I cant help with a repairer in your local area.
For the sake of £10 to £15 this sounds like it could sort out your problem and save you a small fortune
If you can post some pics it might help