Encountered the same as well.

Was looking for 2nd hand i3 6100 for my niece's rig and posted at this forum. This guy suddenly whatsapp me at 29/10/2016 early morning (2.19am) that he wanted to let go the processor at RM 330 (it was used for 5 months).

He claimed that his lowyat ID is shyong_sam and even shared me the pic of the receipt and processor. Without thinking much and I was in a rush on building the rig, I banked him the money to his Maybank account:
NG MENG CHENG
4-47385340-5 (It looks like he has another account in Maybank)

After giving me the G-Dex consignment note on Sun night, this guy is unable to get in touch till now.