Vietnam visa for bus travel from Ho Chi Minh City to Phnom Penh
My friend and I are planning to travel to Vietnam in October. We hope to arrive on 11 October and hope to spend approximately 10 days in Vietnam. We are not sure exactly when we will leave Vietnam. I am looking in to bus travel from Ho Chi Minh City to Phnom Penh. Can we order our visas on arrival without an exact departure date? Thank you for your help.