OP, if this happened or not, only you will know. What I will say is why would you even think you deserved to get 'all or some' of your money back? And then, when it didn't happen you post a negative review whining about it.
I would imagine the amount of times a WG has heard the 'I'm not feeling well trick' to try to get out of a punt is beyond belief.
Humour me though. Let's say your a piano teacher. You put an hour of your time aside to give a lesson, maybe missing out on another pupil who also wants a lesson. The pupil turns up, you start teaching, they declare themselves ill and demand their money back. Would you return it? I'd say it all depended on how it was asked.
Lastly, if you were a bit under the weather, do you think it was wise to go round to see someone in the first place?