Thomson have a very convinient service known as a "Taxi Transfer" with some slight problems;
1.When it says "Taxi" it means bus
2.You have to confirm 42 hours before you leave (when going back to the airport) that you are going on the bus
All in all you now know, the danger of a "Taxi Transfer".
The_Walrus
Pro 
The taxi transfer was for the return to the airport, not the outward transfer. As for the problem coming back, it was my fault. I didn't remember I was supposed to confirm the taxi transfer two days beforehand. Still, we made it!