I was a bit worried about booking a taxi for my return journey to the airport online however it was nice and easy. Check your spam for confirmation emails but if you do contact customer services they do everything to help you, the response time is quick and their English is good.
I knew how much the taxi would be before he arrived which was good as we could get it ready for them. He arrived on time and the bus we had was clean. The driver was very friendly.
I would definitely use this service if I go back.