This might be entirely reasonable....
Plumber called out to fix dripping shower. He replaced internal part. Still dripped. Returned and decided it was another part - an expensive part - so it would be more cost effective to replace the whole shower.
Just received invoice - charged for 2 visits and part.....yet he has fixed nothing as shower still dripping.
Is this entirely standard? We feel a bit miffed to be honest!
We haven't yet arranged visit to replace shower.