This is garage speak for we don't really want to work on anything nice, people who come here bring their old bangers where we can bodge the job for cheap and people don't care. You've got a nice car that's not a skip, please take your business elsewhere.
If you do want it fixed for piece of mind - take it somewhere else. Either to a good VW Audi Group independent specialist that is comfortable working on nice Audis - or just take it to the main dealer. Yes it will cost more - but if you're paying money just for piece of mind - may as well just swallow the hard pill and pay whatever large bill they'll give you and enjoy the free coffee and book a courtesy car etc... to make it as smooth and nice an experience as possible.