Will Jet 2 pay me for the lost wages I suffered when I had to take time out of work to drive to France to collect my parents after Jet 2 had abandoned them in Lanzarote or the ferry ticket or the petrol?
I cannot think of a reason why they should bearing in mind you were not a passenger.
They were left with no other option but to try and get a flight to the spanish mainland then try to hire a car and make their way north towards the channel ports - I finally met them in Paris.
It seems your parents were quite capable of making their own way home.