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It’ll depend on who you talk to and their mood, but theres a high chance they won’t give it to you. The ladies in the Hong Kong office have never been that nice, I’ve heard it’s gotten better and I’ve heard it’s gotten worse. Good luck!
I went to HK with an invitation letter from a friend stating tourism reasons. They asked me how long and I said 60 days. It all depends who you speak to- I would try the wedding story- make sure you take a copy of the invite!