For those of you who aren't aware, it is possible to contact 999 via text message IF you cannot make a call safely. A call should be first option as it's faster to get help
You need to register before being able to use this service by sending a text to 999 saying "register". Await a response.
I urge everyone to do this
More information here:
https://www.policeconduct.gov.uk/sites/default/files/Documents/research-learning/Silentsolutionn_guide.pdf
https://firstaidtrainingcooperative.co.uk/can-i-text-999/