MONDEO 2009 TDCi DIESEL - STARTING PROBLEMS - FARMBOROUGH FLYER

I've recently had problems starting. The car has a push button starter but doesn't crank the engine.The AA have looked at it without success. I took it to Allen Ford in Bath but they said it started every time and they couldn't find any fault. Stlll tried to charge for looking even though it is under warrantly.

Anyone else had similar problems?

Thanks.