The 107/C1 uses a Toyota engine and very likely the robotized manual gearbox is from Toyota too. Overseas markets like UK have Toyota models like the Yaris and Auris with this type of clutchless manual gearbox but unfortunately none of them are sold here, hence the lack of support.
Think the last Toyota model with a similar gearbox sold here was the MR-S. Changing the clutch itself is not the difficult part, but it will need to be calibrated and that probably requires the right equipment/ software.
(Still have a set of 3 almost new NGK Iridium plugs for a 107/C1, removed from car after 5000km, anyone interested at $25 ?)