Have you checked the rota motor is free to turn?
Remove the basket and take the spray off an there you will see the motor impeller. See if this turns by hand.
Let me know what you find.
Ok when you first turn it on and start a new cycle the first thing it should do is pump the water im taking it if you try it now its not doing it?
If so remove the rota motor and mesh filter by just twisting it off and then you need to get a cable tie and were the filter goes you will see a spout. Push the cable tie up there and the other end should come out were the rota motor sits so pull it out and see if any debris comes out.
Then refit the rota and retry it and see if the water drains out then.
Nice one glad to hear its sorted and thanks for letting me know.
If you could rate the service I gave that would be great.