I will be arriving in Phnom Penh very late on March 11th, will wake up very early to tour a few attractions and am hoping to take the 2 PM bus to Siem Reap on March 12th. I have finally found a place I want to stay and have emailed them, but they said they are unable to purchase a Mekong Express Bus ticket for me as they only have the kampuchea angkor express bus. After reading these forums it sounds like the Mekong Express is the only way to go.
Does anyone know how I could book the Mekong Express Bus in advance? Do I need to find another guesthouse that will do this for me or ??? I want to be sure I have a booked seat on the exact date and time I want, not to mention I won't have time my only morning in PP to try and figure this out as I'll be busy touring around. Thank you!