You didn't! I paid around £100 for Meet & Greet + full valet for a week at the end of may. Upon collecting the car, I was told 'oh- i didn't get chance to do the valet'. When i asked about a refund for it and enquired as to whether it was automatic his response was 'I don't know, to be honesy- you're probably best off phoning the call centre' After hunting for the number I spoke to a very helpful guy who said he'd need to confirm that Valet wasn't done then would get back to me in around 90 minutes. He didn't get back to me until the next day. While the prking service was good and I managed to get the refund- overall service was very poor!