Tom Anderson wrote:

I will try to persuade the housemate to make a complaint,
but i doubt he can be bothered.

Minicab fares are not controlled, so there is no-one you can complain to who
will care. A letter to the local paper might hit the company in the pocket,
but the minicab company knows where your friend lives and how to break
windows.

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We are the Strasbourg. Referendum is futile.