Sir – Visiting the central Oxford underground car park, I was dismayed to find that I needed to pay £8.70 for four hours.

The price is high, but my chief concern was that the machine neither gave change nor took notes. How many of us carry nearly £9 in small change?

For longer stays, of course, the charges can be much higher. It must be exceptionlly difficult for the foreign tourists the council seems so keen to discourage.

Anthony Abrahams (Dr), Eynsham