my advice to all:
1. no need to call CS first. unlikely they will have any info on the process. if you push for it, good chance they will just try to come up with something logical like bring everything including freebies and then we file for refund. after all, if you wanna ask for refund, you need to return whatever you "bought".
2. be patient. the global halt got announced only yesterday. in Malaysia, ppl still sleeping. it takes time to formalise a plan, especially if it's just going to be a refund. Samsung need to know how to make payment -- cheque? bank transfer? then there's also those in contract and bought by partners... or even subsales.
it can sometimes take 1 day to come up with plan, 1 day for legal to approve (meaning it's legally correct and not open themselves to lawsuits) and probably another day for marketing to word things nicely...
we all know what will happen. there will be announcement saying there's investigation. samsung puts priority on safety. so, if can, power down and use some other phones... and wait for further updates.
i strongly believe we'll have our answers probably by Thu or Fri...
in the meantime, just pray harder.

Least they can do is to issue a preliminary statement first rather than keep silent as if nothing is happening. 2 to 3 days wait is too long by all standards.