According to insider info, Tam is a notorious scammer within the local mechkey community (he was actually banned from that local group). He is a 23-year-old guy who keeps boasting his rich and extravagant lifestyle in various local forums (including hi-end audio), and will do anything to get money fast and keep his public image.
There is no "Nam" guy either, if you read his email and compare with other posts by Tam himself in this thread, you can notice the distinct similarity in their English usage, how spaces were used before commas, etc. It's more likely that Tam created this "Nam brother" character to maintain the story that he got cancer (which is obviously false).
The local community, upon hearing about this incident on GeekHack, has been laughing non-stop at Tam's new (unsurprising) tactics amd scam. Meanwhile, Tam is still posting pictures of his recent lavish shopping trip in Singapore on Facebook (visible to his friends only), and a few days ago he even asked around for a designer to help with his new (propably scam) project.
So to everyone, PLEASE GET REFUNDED ASAP. Don't expect N(T)am to send you the keyboard; he is reluctantly refunding you guys on request. Get your money back and buy from Lynn directly!
(mod edit: snip) Mod edit: one of the screenshots has been reported to us as a private discussion that should not have been shared publicly. This screenshot has been removed. Please remember that sharing private conversations without all parties' agreement is subject to removal.