You tell the sales: 我朋友又一直說我的包包顏色有問題..說我的是假的" and said you are very upset about the service and quality. Will reconsider about buying any LV in the future. Talking to the sales mamager. In LA, no matter how much I buy or even just looking, the sales are always having smile and trying to result customers' problems..
My friend has an Ellipse backpack that she uses a lot. After using it for about an year she noticed that the monogram had faded (just like yours). We believe all Louis Vuitton traditional monogram bags have the same problems. It all depends on how much you use your bags. I do think it is normal that the color fades. Sorry to say that the sales people in LV are very unlikely to let you return the item just because the color of the monogram faded... sorry...