Write you letter to the English Bridge Group and tell about the time when you (your friends , its.)got some treatment after something had happened to you or him/her

Hi Peter,
I know youre the leader of "English Bridge" group so I want to address this letter to you. As you know
I went to your office last week to get some english classes but then when I walked down the stairs I felt 
and damage my right arm. 

Id like to say thanks to Andrew and John who called to emergency and did the first aid.
Then I was delievered to a hospital where nice doctors lit me up with x-rays and put my arm in plaster.
Now Im a bit better and just wanted to ask you to check the stairs and probably make them not so slippy.

Best Regards,
Ekaterina