Hi,
I had a similar issue on day 2 of owning my Volvo the blade snapped on my key leaving the car stuck on the driveway.
I contacted what seemed like every company on the planet and nobody could get me a replacement as they kept saying they’re not being made anymore, but after a lot of pestering one company in London said they managed to source some and bought them in bulk as they realised they had a bit of a monopoly on them.
https://www.carkeyssolutions.co.uk/ Might be worth dropping them a message even if you can just buy the key from them to then get it programmed closer to home if you’re far away.