To victim,

u know how rude he was when dealing with buyer in the past, bank account link to past scammer, delete post to cover track, using multiple dupe to defend himself. And you still believe what he say to wait quietly for refund ? I will advice,

1) Ask him to show his police report (uncensored) and go to police station to verify it. Do not believe whatever excuse he come up by not making a police report.
2) Ask for a photo of his IC and make your own police report for the record purpose, even he is scam by his supplier, if u guys dont press charges he will be fine.
3) If he is not the scammer he will have no problem to provide the above. Unless he is afraid by making a police report himself will enable police to trace the fund and link him back as the same person.
4) Speak up, dont not be threaten/manipulate by him if responding to LYN will jeopardize ur refund. If he is not a scammer and true to his word to refund, he will have to do it without any added clause. What is all secrecy about the arrangement for refund that cant be reveal ?
5) Also beware those so called other victim in the whatsapp chat might be a dupe to gain majority vote or to swing your opinion, dont not believe until u urself get the full refund. He could even say successful refund to his dupe or refund 1 person to buy time and disapear later.