I did a transfer at INSTAREM 2 days back. I transferred the money using CIMB to their CIMB account. However, website still showing AWAITING PAYMENT. Their support number always goes to voice mail immediately. Online chat also only have auto reply message. Email them and took 1.5 days to reply. They told me they saw a banking transaction with account xxxx and asked to provide banking transaction details. Reply with proof now but the website showing transaction is cancelled due to no payment. No reply until now... this is really bad.
Exchange rate is good but took few days (and slow customer support). I think transfer small amount is still fine since they don't have minimum amount to be transferred. Also, prefer to use DBS transfer so that they can see the REM transaction ref no.