
Hi, we've just returned from Danang and applied for Vietnam visas ourselves at the embassey in Holland Village.
Encountered the same problems as you with getting through on the phone and getting onto the right page of their website for the visa form. To apply, you must go in the morning but the queue is not long.
Beware that although the form asks if you have any accompanying children travelling with you, they will still insist on a separate visa application for each child. I think they must mean any accompanying children on your passport. Fee for a 4 day hol was a steep SGD85 per person. Collection also quick - less than 20 mins each visit.
It took 2 weeks until collection.
Good luck, have fun