I was a little worried about sending my pump off with just on line booking, but do not be worried at all.
They spell it all out for you, booking it in then arranging collection prepaid, then letting you know when they received it, when it was repaired and when it will be delivered back.
The best way to get anything like this repaired by far.
Don't use a dealer go straight to these folk. I will for any other problems I get with anything.