Planning on going to the Irish Japfest on the 7th Sept so i took off the wheels yesterday to give them a super clean inside and out ... but am disgusted to find bubbling on the paintwork in a good few places

I thought new alloys would last longer than this after the corrosion problems with the IS200 5 spokes you'd think they'd go the extra mile this time round?
I presume i have no comeback under the Lexus warranty as they are on a different car in a different country?