Dear Khun Mongkol,
For EVRAT20, I have coordinated with Khun Poothnont closely and will keep you updated for an outcome.
For FA15, please advise whether it is item 30 (006-1012) or item 31 (006-0052) so I can send you the replacement one ASAP?
PS. Please be informed that I do need to get the defected one back for investigation soonest both for EVRAT20 and FA15.
Sorry for inconvenience