exact same thing with my baby rocco. the leather on the piping has worn away only to reveal the plastic piping underneath. my bag is the one with black studs and the piping for my bag is black. not too sure why but yea it is worn away anyways. the bag spa in my country offers services to fix it to be good as new but it will cost 210. honestly speaking, is it worth my money to fix it if im not even 100percent sure if it will ever start wearing away again in months time.
my conclusion is to just make full use out of it since i have it anyways. i love the style and i wont ever buy another wang bag because of the quality of it. so im going to make full use out of it as an everyday bag while saving up for a better bag in the future.
so sorry to hear this...but is there a chance that this bag spa will warranty their work if they do fix it up "good as new". it might be worth a shot if they do warranty it in case it breaks again.