This car hadn’t seen daylight for 18 months,, the previous owner sloped off to Dubai to work, and left in her garage, so the paint was, and still is in near perfect condition, albeit I gave it a thorough 3 stage detail. The dealer can cause some issues when they clean the cars, it’s just a another car to them. Bring on the summer..
Haldex should have been done at year 3, 12 months ago. If you’ve got an extended warranty then you shouldn’t have issues getting it repaired - unless they start asking questions why the haldex service was so late.
Unless your tyres are due replacement then it's almost certainly a blocked haldex filter. I appreciate it might be under warranty but you should still take it to an Indie and get the filter cleaned out if VW refuse to do it as it might come back to bite you later on when it's out of warranty.