I was fined £500 after putting a coffee cup in a rubbish bag next to a full bin

An enforcement officer told a reader they had violated the law and refused an offer to remove their cup. He asked for their details, including their passport. Photograph: Steve Speller/Alamy

I was outside London Waterloo railway station and was looking for a bin to dispose of an empty coffee cup.

The only bin I could see was completely full, but there was a plastic bag containing rubbish at the base.