It's such  bulky delivery via cargo. My condo has restrictions for allowing lorries in during working hours only. I am not going to apply leave for this nonsense.

I actually need the diapers. They were also ordered on "SuperBrandDay", which happens once every 3 months or so. I will lose out massively in terms of the discount/vouchers (which is better than the normal 6.6 or 25.6 vouchers) if I send back and refund the entire order, and thats not factoring in the inconvenience for what is not my error. Plus there is also a rather nice free gift received.

The only way this makes sense to me as a customer is if they do a 1 to 1 exchange of the correct item  or refund me 1/3rd of the total order value.

I actually need the diapers. They were also ordered on "SuperBrandDay", which happens once every 3 months or so. I will lose out massively in terms of the discount/vouchers (which is better than the normal 6.6 or 25.6 vouchers) if I send back and refund the entire order, and thats not factoring in the inconvenience for what is not my error. Plus there is also a rather nice free gift received.

The only way this makes sense to me as a customer is if they do a 1 to 1 exchange of the correct item  or refund me 1/3rd of the total order value.

If it is purely due to seller error, that's the least they could do - offer an exchange. Or refund part of the incorrect order. Or refund terus the full order.

I've ordered smaller items from non Mall seller on Lazada before. If memang got error, they send a rider to pick up the incorrect order and give the correct one. I bought cooking powder last time, the shop corrected the issue the very next day.

This order, the issue is in the triple digits, and so easy to wash hands ker? Where is the buyer protection?

From how I see it, you can't win it all. The solutions offered is their SOP.

The order was done on super brand day, with great discount I assume and nice free gift as mentioned...yet now you are looking to dispute for 1/3 of the delivery fee (which I assume is just a small amount compared to it all).

Just return the wrong one and get back the refund of what you paid. Unless you're really free and have lots of time on your hands. Don't be penny wise, pound foolish.