Last night I noticed this to my horror. It's on the underside of the 13th-14th fret. It looks like the finish separated from the 13th fret and chipped then continued to separate down the neck. This is guitar is a 2016 spec PRS Custom 24 I bought in February from brand new at WorldGuitars.co.uk serial number 15 222443 and has absolutely never recieved any punishment other than my awful choice of chord progressions and improvised solos. What should I do!