Sir – Your article (March 10) says . . . “RingGo chief executive Joanna Miller said hundreds of people had contacted them to complain about the loss of the service.”

You should ask Ms Miller how this is possible. I would be very interested to hear how she received these complaints — maybe carrier pigeon or smoke signal.

If you investigate their website it is almost impossible to complain. They do not display any telephone numbers other than the one used for booking.

On this number it is impossible to talk to a human being.

On the website there is a page that makes it look as though you may be able to make a complaint but it actually just responds by saying that they cannot give any refunds (even when they have made a blatant error apparently).

They owe me £70 which I have not been able to make any progress with but miraculously they have had hundreds of complaints about the withdrawal of the service in Oxford.

I am going to complain to the OFT about their operation.

Jonathan Griffiths, Oxford