I tried the "live chat facility but no on responded (robots on strike?) I then sent emails but got no reply to those. FinallyI phoned the call centre. The problem was that the website showed that the service from my home town to Heathrow airport was no longer running (it used to stop at the airport en-route to London). The operator could not tell me if the service had ceased or whether it was just an error on the website, she could not tell me if or when it might be resolved. Nevertheless she did offer to sell me a ticket to Heathrow, even though she had no idea if the service was running. Unbelievable.