Our water companies do get a very bad press at times and come under a lot of criticism for not repairing leaks immediately, especially in times of water shortage and hose pipe bans.
I can only quote from my own experience.
At the weekend I reported a small leak at the stop tap which is situated on the outside pavement - this I did by e-mail.
Monday resulted in a visit from an Inspector at lunchtime and by 8 o'clock this morning a team were repairing the pipe - I think this is extremely quick given the circumstances.
It will take up to 5 further days before the pavement is repaired and the hole filled in but I am not worried about that.
So well done ...