I am in Hoi An in central Vietnam. I wish to enter PRC by foot after having taken the train from Hanoi. I will be in Hanoi day after tomorrow (Monday) and wish to be on my way as soon as possible. However, I need to also apply for a re-entry visa in Vietnam from Vietnam so I can come back to Vietnam. This is beacause my destination (Hekou in Yunnan) has no good value airport, but Hanoi does. But I cannot have my passport in two places at once, and have little time. What is the best value Chinese tourist visa express service for Canadian citizens?