No harm trying Lazada sellers for cables honestly.
Rather have a working headphone than a cable'less phone.
Can't promise if those RM50++ cables in lazada going to sound different from stock but I'd say it won't go that terrible. If seller didn't ship your goods you can always use lazada customer protection and grab back your money.
Plus with spare cable you can try diy repar cable your own without worries
Hd6xx Recabling.