Tried to pm you but you do not have pm set up. Many have stated they take a soft dry cloth and wipe down the hardware frequently to prevent it from continuing to happen. Keeping the hardware clean will help. It really should not do this in my opinion for what the bag cost, but everyone has been coming across this with the bag.
i don't want you guys to try it unless you're comfortable doing this....
i waited for 3-4 months to do this!!! i used baby wipe to clean the dark marks....and they came off clean! i use baby wipes on all my LVs, but i normally wait until it starts to develop patina --- ever since then, the dark marks seem to be slowing donw on the appearance plus the leather itself is nice honey color now!!
for years i used pampers non scented ones, but i recently switched target brand's non scented one.... they are bigger and stronger, LOVE their baby wipes!! lol