I came across search some posts found that you ask CS to confirm whether the product legit or not.
To be honest, no offense, I need to point out that you purposely go ask/Livechat CS is not a wise move. Here is why.
1. CS won't know exact what is in the box/product of the SKU (stock keeping unit)
2. If it really price error/mistake, your question triggered the merchant/seller because CS have to contact to get confirmation so that CS can reply to your question (refer Point 2)
To backup my above points, I put a simple scenario as per what you have done.
1. What if the item really a price error/mistake, you contact CS and CS contact merchant/seller, seller/merchant found out, all order get cancelled or on hold.
2. What if the item realyl a price error/mistake, you diam diam, Lazada logistic pack your item and send out, you get the item.
BUT WAIT!
A. if the item is not as advertised (eg. charger with NO battery), you can return and refund. (maybe you get SV too, who knows)
B. if the item is as advertised (eg. charger with 4 batteries), you cukur.
Actually I don't think Lazada and Seller are stupid enough not realized that, definitely they know what happened.