i'm actually speechless after reading all posts in this topic, but my heart keep telling me to voice out my opinion regarding this problem. First thing i want to say, TS u are the 1 at fault, whatever u want to say about ongbs being 'a bad seller', all the proof that bro ongbs posted it here already clearly showing that he was doing right thing regarding his deal with u. So i hope u can accept this, and apologize to ongbs about ur 'rude' pm's to him before (sori have to say this ). Only then i think u can further ur negotiation with him. And i hope bro ongbs still willing too after getting ur apologize.
About refunding for the proc, i have 1 suggestion to both of u:

1. TS have to send the proc back to ongbs first, in the same way and packaging condition like way he sent the proc to u before (TS, u have to believe him regarding this because i think u already can evaluate him by urself by reading several posts by other forumers defending and giving good feedback about him)
2. After receiving the item, ongbs will inspect the proc physically and if proven physically ok, bro ongbs will refund a partial of the RM160 first (how much will depends on negotiation between both of u, but IMO better not more than 1/2 of it to protect seller's side)
3. after that, seller (ongbs) will test the proc about it's function, and after proven ok, continue with refunding balance of the money
4. because ongbs is already well known in LYN trading, i dont think this will be a problem for u to get another buyer for this item, and if ur future buyers refer to this thread, i'm sure ur reputation still maintain (or might be increased), so again, no problem to sell this item

this is my humble opinion, up to both of u to accept it or not. But i'm really this matter can be solved in a peaceful manner with win-win situation for both parties. last friendly advice to TS, please do a self-reflecting ur attitude and way u talk to others (hope u can improve it ), only then u can find joining LYN (trade, forums) will be exciting for all of us (at least this is what i feel now about this forum ).