Thanks to all bros who have given me feedback after reading my posts, very appreciative of that!
From my prior research I also had a sense of the price but since I was alone and don't know how to speak viet, I don't have much power to negotiate at the hot toc shops

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Bro volcano, I didn't know that D1 was so near D7 though, was just feeling my way around. If I had known, I would have gone straight there man. But thanks for info!
Also at Dai Nam, I don't know how to speak viet and look like a boy-boy so kena chop also don't know how lol. Maybe next time if I make a trip to HCMC and am lucky enough to have a friendly companion with me, I won't be chop so hard! After all, every bad experience is also a learning experience, so that next time I hopefully won't kena