Logitech keyboard - needs fixing (Brixton Hill SW2)

This keyboard is not fully working - sometimes the right hand keys (especially the full stop!) don't work.
If you can fix it: it's the Logitech K810 Bluetooth Illuminated short keyboard. Charges through a USB cable (it doesn't have one with it, but I'm sure you've got one).
A few marks on the back. They're lovely keyboards, though is the short version.
Dimensions: 29cm x 13cm (approx 1cm thickness).
Please message with times you can collect.