I'm traveling to Laos via Cambodia on an Australian passport. I'm going to have to change airlines in Siem Reap Airport, so I will (presumably) need to clear immigration, claim my bag and check-in again. However, on the way back we're going to be spending a few days in Siem Reap.
Cambodia's e-Visa and Visa on Arrival options all appear to be single-entry, and I can't find any information on obtaining a multiple-entry visa beyond some suggestions it can be obtained in Cambodia itself - something that we're not going to be able to do on a stopover.
Is it possible to obtain a multiple-entry visa for Cambodia before arrival, or will I have to get two single-entry visas just days apart?