Y bother to waste money to check all the mobo and stuff, just refund, end of story.
If can ask for compensation for wasting your precious time and travel fees.

He is not honest at the begining of sales (full box=everything in the box just like new).

And the seller reply, i sell u RMxxx cheaper, ofcos less item inside (ask seller sell to others if he plan to sell at original price with FULL BOX).
Finaly, u bring this issue up here and seller only started to peace out by saying ok lar, i send u watever cable left over.