I'm sure that there are a number of fellow SVers who have pre booked car parking at Manchester Airport and like me now wish to cancel their booking due to the virus.
I phoned 0808 169 7030 and after a lengthy recorded message lasting over 5 minutes ( nearly lost the will to live listening to the recorded message ) I was eventually put through to a customer services person who was able to help me out as trying to do it on their web site proved impossible.
If you are having similar problems then stick with it and you will eventually get through and your payment will be refunded in the next week of so after a call from the Airport to confirm your details.