Huh
He picked it up today....
I think its worth talking to the garage, if it is covered in the warranty is doubtful but definitely worth talking to them, its not a huge fix you can buy new parts but in the main the clicky axle can be taken apart and regreased if it is not too bad
if its 2nd hand its not guaranteed to come with a warranty, its not like its with the manufacturers warranty. its classed as a war and tear issue. I had trouble getting Nissan to do it a week out of warranty. ask them but if it didn't have a warranty agreed as part of the sale I think its down to the op