Don’t take any cr@p from the dealer, drag them round other GTIs or other leather steering wheeled cars they have. Put it all in writing on dated letter, labelled complaint giving them 14 days to resolve the issue. The law has changed in 2015, the Consumer Rights Act is better and supposidily easier to get them to deal with these issues, even if out of warranty or they claim it’s wear and tear and not covered by warranty. Your contract is with the dealer, not VW. If in doubt, most house insurance includes free legal advice for these types of issues if you are unable to resolve.