Just get an uber @Ldnn1

I found them easy to use - once I remembered to tell the driver exactly where to meet - parking level 2!

Prices are very reasonable. I paid around £7 to the Hilton which took around 25 minutes. However, I did have issue with one driver who decided he wanted to charge me to go to the airport and then back into town. Uber were quick to sort this out and I ended up paying the estimated fare. Other drivers have been very good.