Airport transfer Lanzarote

This was the 5th occasion in the last three years that we had used Suntransfers and the previous times had been excellent. This time though the service was awful. We arrived at Lanzarote airport at 8pm and moved quickly through to where the taxi drivers and package tour reps were holding up their boards, greeting their clients. There was no sign of our driver. We walked around the arrivals terminal and the taxi rank outside trying unsuccessfully to locate our driver. We tried ringing both of the Sun transfer help lines. The UK number rang once and then cut off on several attempts. The Spain telephone number gave us an automated answer system totally in Spanish. A taxi driver from a different company noticed that nobody was there to meet us and that we were becoming anxious. She kindly offered to help and explained that Suntransfers use three taxi companies in Lanzarote. She made some telephone calls and finally said someone was on his way and should be with us in 10 minutes. Half an hour later our driver turned up. When asked where he had been he just curled his lip, shrugged his shoulders and said "Low flight". He offered no apology. Not another word was spoken until we were dropped off close to our destination.
If it was not for the helpful lady taxi driver from another company we would have had to make our own way from the airport.
We will not be using Suntransfers again