I did come round and take pics of yours It's a known issue with NMGB and at dealer level - depending on your dealer of course. You need to insist that your wheels are replaced and NOT refurbished. These wheels should not look like that after 18months.
If one bubbles will they replace the set?
I think they do, but not too sure depends on how many are bubbling? If its just 1 then i think they will just replace the one, if its 3, then they will replace all 4.
2 of mine are so middle of next year i am going to get it changed over along with the rear mouse that must be in the wheel arch, he makes a noise sometimes
AND NO I DID NOT BREAK THAT!
Sounds broken to me