Transfers into and allocating funds out of pooled accounts

Hi All

I am thinking of transferring AED into my AED sub account in order to benefit from the interbank FX rates (transfer into euro).

However, I am a little concerned about funds going missing and not being allocated and long response times from Revolut service team.

Is this a big problem where you dont have a perosnal IBAN but rather rely on Revolut to allocate funds on the basis of the Reference number given?