i have two experiences dealing with Jayacom.

Once after two years my 2TB WD harddisk fail on me..deal with the warranty at Jayacom Alam Sentral even though I bought it at LY. No issues, lost the receipt but they can still trace the purchase record..replaced with a new HD after about three weeks warranty claim.

The other experience, bought a motherboard that turns out to be a lemon, went to Jayacom two day later and got it replaced 1 to 1 on site

Overall the service is good